SMIM1

UniProt ID: B2RUZ4
Organism: Homo sapiens
Review Status: COMPLETE
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Gene Description

SMIM1 (small integral membrane protein 1) is a 78-amino-acid single-pass membrane protein of the erythrocyte plasma membrane that carries the Vel blood group antigen. It is expressed mainly in the erythroid lineage, with highest levels in bone marrow and induction during erythroid differentiation of CD34+ progenitors. The protein has a cytoplasmic N-terminal region bearing phosphoserines (Ser6, Ser17, Ser22, Ser27) and an acetylated initiator methionine, a single transmembrane helix near the C-terminus, and a very short extracellular C-terminal segment that displays the Vel epitope (type II / tail-anchored topology). SMIM1 forms disulfide-linked homodimers, through Cys77 and a transmembrane GxxxG motif, and dimerization promotes surface display of the Vel antigen. Homozygosity for a 17-bp frameshift deletion in exon 3 abolishes the protein and causes the Vel-negative phenotype, in which anti-Vel alloantibodies can cause haemolytic transfusion reactions. Its molecular function is unknown. Indirect evidence links it to red cell formation: an intronic eQTL that lowers SMIM1 expression is associated with lower mean corpuscular haemoglobin concentration, and smim1 morpholino knockdown in zebrafish mildly reduces red cell numbers. Humans lacking SMIM1 are healthy but show higher body weight, lower circulating thyroid hormone and reduced resting energy expenditure.

Existing Annotations Review

GO Term Evidence Action Reason
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:A0A0S2Z4U3) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:O15393-2) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:O15552) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:O95377) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:P04233-2) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:P15151) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:P15941-11) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:P21964) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:P32942) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:P43628) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:P48165) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:P49447) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:P54219-3) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q13323) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q13520) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q15125) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q16623) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q3KNW5) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q4KMG9) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q5JX71) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q68DC2) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q6P9G4) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q6Y1H2) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q6ZSS7) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q7Z4F1) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q7Z5P4) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q86VR2) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q86WA9) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q86WV6) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q8N183) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q8N5K1) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q8N5M9) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q8N661) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q8NC24) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q8TAF8) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q8TBE3) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q8TBP5) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q8WWH4) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q96B21) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q96BA8) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q96DZ7) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q96KR6) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q96MV8) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q9BXK5) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q9GZY8-5) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q9H6H4) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q9HCJ2) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q9NR31) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q9NW97) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q9NY72) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q9Y282) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q9Y286) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q9Y320) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
REMOVE
Summary: High-throughput yeast two-hybrid hit (UniProtKB:Q9Y3Q0) from the HuRI human reference interactome; bare protein binding carries no functional information.
Reason: Generic protein binding is uninformative and no more specific molecular function can be derived from a high-throughput Y2H pair. SMIM1 has 54 HuRI partners and none has any functional link to it. They are almost all unrelated membrane proteins (gap junction proteins, SLC transporters, syntaxin, ER/Golgi membrane proteins, mitochondrial outer-membrane proteins), which is the pattern expected when a single hydrophobic transmembrane helix is assayed in a yeast nuclear system. The only interaction with independent support is SMIM1 self-association, which is captured by the protein homodimerization activity row. Removal does not imply the reported interaction is false.
Supporting Evidence:
PMID:32296183
Specifically, yeast two-hybrid (Y2H) represents the only binary PPI assay that can be operated at sufficient throughput to systematically screen the human proteome for binary PPIs.
GO:0005886 plasma membrane
IBA
GO_REF:0000033
ACCEPT
Summary: Plasma membrane location propagated from the SMIM1 family node; SMIM1 is an established red cell plasma membrane protein.
Reason: Consistent with direct experimental evidence on human SMIM1: it is purified from red cell membranes and displays the Vel antigen at the cell surface as a single-pass type II membrane protein. The IBA lists SMIM1 itself (UniProtKB:B2RUZ4) among its sources, which reflects this experimental grounding.
Supporting Evidence:
PMID:26452714
In conclusion, all our experimental data argue for SMIM1 being a type II membrane protein that displays the Vel antigen on its C-terminus.
PMID:23563606
evolutionarily conserved transmembrane protein expressed on RBCs
GO:0005886 plasma membrane
IDA
PMID:23563606
Homozygosity for a null allele of SMIM1 defines the Vel-nega...
ACCEPT
Summary: SMIM1 detected in red cell membranes; absent from Vel-negative RBC membranes.
Reason: The abstract reports a transmembrane protein expressed on RBCs with a null phenotype in Vel-negative RBC membranes. The full text is not cached; the curated plasma membrane location is consistent with all other studies.
Supporting Evidence:
PMID:23563606
evolutionarily conserved transmembrane protein expressed on RBCs
PMID:23563606
confirmed a null phenotype in RBC membranes, and SMIM1 overexpression induced
GO:0005886 plasma membrane
IEA
GO_REF:0000044
ACCEPT
Summary: Plasma membrane from the UniProt subcellular location mapping (Cell membrane; single-pass type II membrane protein).
Reason: The UniProt location is based on experimental topology and localization data, which support plasma membrane.
Supporting Evidence:
PMID:26452714
In conclusion, all our experimental data argue for SMIM1 being a type II membrane protein that displays the Vel antigen on its C-terminus.
GO:0005886 plasma membrane
IMP
PMID:26452714
SMIM1 is a type II transmembrane phosphoprotein and displays...
ACCEPT
Summary: Topology and mutagenesis study in K-562 cells establishing SMIM1 as a type II plasma membrane protein displaying the Vel antigen.
Reason: Direct evidence from flow cytometry of tagged and mutant SMIM1 in erythroleukaemia cells.
Supporting Evidence:
PMID:26452714
In conclusion, all our experimental data argue for SMIM1 being a type II membrane protein that displays the Vel antigen on its C-terminus.
PMID:26452714
given that the expression of SMIM1 at the cell surface is essential for displaying the Vel antigen
GO:0009986 cell surface
IBA
GO_REF:0000033
ACCEPT
Summary: Cell surface location propagated from the SMIM1 family node; supported by flow cytometry of Vel antigen on red cells and transfected cells.
Reason: The Vel epitope on the extracellular C-terminus of SMIM1 is detected on intact cells by flow cytometry, so SMIM1 is exposed at the cell surface. The target appears among its own IBA sources because it carries experimental annotations for this term.
Supporting Evidence:
PMID:23505126
Flow cytometry analysis of K-562 cells stably transfected with the SMIM1 cDNA showed cell-surface expression of the Vel antigen
PMID:26452714
given that the expression of SMIM1 at the cell surface is essential for displaying the Vel antigen
GO:0009986 cell surface
IDA
PMID:23505126
Disruption of SMIM1 causes the Vel- blood type.
ACCEPT
Summary: Flow cytometry shows Vel antigen on the surface of SMIM1-transfected K-562 cells and Vel+ red cells.
Reason: Direct detection of the SMIM1-borne Vel epitope on intact cells.
Supporting Evidence:
PMID:23505126
Flow cytometry analysis of K-562 cells stably transfected with the SMIM1 cDNA showed cell-surface expression of the Vel antigen
GO:0009986 cell surface
IMP
PMID:23563606
Homozygosity for a null allele of SMIM1 defines the Vel-nega...
ACCEPT
Summary: SMIM1 overexpression induces Vel antigen at the cell surface; loss of SMIM1 gives Vel-null red cells.
Reason: Surface display of the Vel epitope depends on SMIM1 expression. Full text not cached, but the abstract supports the claim.
Supporting Evidence:
PMID:23563606
confirmed a null phenotype in RBC membranes, and SMIM1 overexpression induced
GO:0009986 cell surface
IMP
PMID:26452714
SMIM1 is a type II transmembrane phosphoprotein and displays...
ACCEPT
Summary: Mutational analysis of SMIM1 surface expression (phosphosites, cysteines, C-terminal lysines) by flow cytometry.
Reason: Cell-surface exposure of the SMIM1 C-terminus carrying the Vel antigen is shown directly.
Supporting Evidence:
PMID:26452714
given that the expression of SMIM1 at the cell surface is essential for displaying the Vel antigen
PMID:26452714
In conclusion, all our experimental data argue for SMIM1 being a type II membrane protein that displays the Vel antigen on its C-terminus.
GO:0042803 protein homodimerization activity
IDA
PMID:23563606
Homozygosity for a null allele of SMIM1 defines the Vel-nega...
KEEP AS NON CORE
Summary: SMIM1 forms disulfide-linked homodimers (about 32 kDa non-reduced versus 18 kDa reduced).
Reason: Self-association is reproducibly shown: disulfide-dependent dimers in red cell membranes, Cys77 and a transmembrane GxxxG motif mediating dimerization, and spontaneous homodimers in a cell-free system. Dimerization promotes surface presentation of the Vel epitope. It is a structural property of the protein rather than its unknown physiological function, so it is kept as non-core.
Supporting Evidence:
PMID:23505126
we now know that SMIM1 can form molecular complexes (likely homodimers) via disulphide bonds
PMID:31879955
dimerization is mediated both by an extracellular Cys77-dependent, homomeric
PMID:32301496
is a tail-anchored transmembrane protein and readily forms homodimers in a cell-free system
GO:0048823 nucleate erythrocyte development
IBA
GO_REF:0000033
MODIFY
Summary: Nucleate erythrocyte development, propagated by IBA from zebrafish smim1 (ZFIN) morpholino knockdown data.
Reason: The term is restricted to development of nucleated erythrocytes, the mature red cell type of fish, amphibians, reptiles and birds; human erythrocytes enucleate, so the term describes the wrong cell type for a human gene. The underlying signal is a mild reduction in red cell number after smim1 morpholino knockdown in zebrafish, supported in human by an intronic eQTL that lowers SMIM1 expression and is associated with lower mean corpuscular haemoglobin concentration. The taxon-neutral parent process, erythrocyte differentiation, captures this. The mechanism is unknown and the effect is small (Vel-negative humans have no recognised haematological disease), so this is a weakly supported, non-core process assignment; a full replacement term is proposed rather than removal because the IBA node placement within the vertebrate SMIM1 clade is not contradicted.
Propagation Review
Root cause: TERM SCOPING PROBLEM
Failure modes: LINEAGE OR TAXON MISMATCH
Sources checked:
PANTHER:PTN002866670 SUPPORTS SOURCE BUT NOT TARGET
Vertebrate SMIM1 ancestral node; human SMIM1 is inside the clade, but the nucleate-erythrocyte term does not fit mammals, whose erythrocytes enucleate.
ZFIN:ZDB-GENE-081022-87 SUPPORTS SOURCE BUT NOT TARGET
Zebrafish smim1; experimental basis is morpholino knockdown with a mild reduction in red cell number, appropriate for a nucleated-erythrocyte species.
Proposed replacements: erythrocyte differentiation
Supporting Evidence:
PMID:23563608
In vivo zebrafish smim1 knock down studies showed a mild reduction in the number of red blood cells, identifying SMIM1 as a novel regulator of red blood cell formation.

Core Functions

Small type II (tail-anchored) membrane protein of the erythroid plasma membrane that forms disulfide-linked homodimers and exposes a short extracellular C-terminus carrying the Vel blood group antigen. No molecular activity is known; no molecular function term is assigned. Loss-of-function data link it, weakly, to red cell haemoglobinisation and whole-body energy expenditure, but how it acts is unknown.

Supporting Evidence:
  • PMID:26452714
    In conclusion, all our experimental data argue for SMIM1 being a type II membrane protein that displays the Vel antigen on its C-terminus.
  • PMID:23505126
    Flow cytometry analysis of K-562 cells stably transfected with the SMIM1 cDNA showed cell-surface expression of the Vel antigen
  • PMID:32301496
    is a tail-anchored transmembrane protein and readily forms homodimers in a cell-free system

References

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Suggested Questions for Experts

Q: Does SMIM1 have a molecular activity of its own (for example as a regulator of a red cell transporter or channel), or is it a structural component of an erythroid membrane complex?

Q: Is the zebrafish morpholino red cell phenotype reproduced in a stable smim1 mutant or a Smim1 knockout mouse, and is erythrocyte differentiation the right process term for human SMIM1?

Q: How does SMIM1 absence lower circulating thyroid hormone and energy expenditure, given its predominantly erythroid expression?

Suggested Experiments

Experiment: Proximity labelling or co-immunoprecipitation of endogenous SMIM1 from primary erythroblasts to identify red cell membrane partners, replacing the non-specific Y2H interactome.

Experiment: Generate Smim1 knockout mice (or stable zebrafish mutants) and measure erythropoiesis, red cell indices, thyroid hormone levels and energy expenditure.

πŸ“š Additional Documentation

Notes

(SMIM1-notes.md)

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