SCGB2A2

UniProt ID: Q13296
Organism: Homo sapiens
Review Status: COMPLETE
πŸ“ Provide Detailed Feedback

Gene Description

SCGB2A2 (mammaglobin-A) is a small secreted secretoglobin (lipophilin subfamily) that forms disulfide-linked complexes and is highly expressed in mammary gland tissue. As a secreted secretoglobin, it is expected to bind hydrophobic ligands in extracellular fluids, although specific ligands and direct biochemical activity remain poorly defined.

Existing Annotations Review

GO Term Evidence Action Reason
GO:0005615 extracellular space
IBA
GO_REF:0000033
ACCEPT
Summary: SCGB2A2 is a secreted protein; extracellular space annotation is appropriate.
Reason: Secreted secretoglobins function in the extracellular milieu.
Supporting Evidence:
UniProt:Q13296
SUBCELLULAR LOCATION: Secreted {ECO:0000305}.
GO:0030521 androgen receptor signaling pathway
IBA
GO_REF:0000033
UNDECIDED
Summary: Phylogenetic annotation seeded by the paralog SCGB2A1 (mammaglobin-B); no SCGB2A2-specific evidence for or against androgen receptor signalling was found.
Reason: The phylogenetic annotation is placed at a node whose recorded evidence is the human paralog SCGB2A1 (mammaglobin-B), so it reflects a curator's judgment that the function is shared by the two mammaglobins. The earlier removal rested on the absence of SCGB2A2-specific evidence, which does not argue against the node placement, and no target-specific evidence of loss or divergence has been examined; the paralog's own evidence was not reviewed here. An inherited annotation is not removed without such an argument, and the row is left undecided.
Supporting Evidence:
UniProt:Q13296
Belongs to the secretoglobin family. Lipophilin subfamily.
GO:0005576 extracellular region
IEA
GO_REF:0000044
ACCEPT
Summary: Secreted protein localized to the extracellular region.
Reason: Secreted localization is a core feature of mammaglobin-A.
Supporting Evidence:
UniProt:Q13296
SUBCELLULAR LOCATION: Secreted {ECO:0000305}.
GO:0005515 protein binding
IPI
PMID:25416956
A proteome-scale map of the human interactome network.
UNDECIDED
Summary: High-throughput interactome study does not provide gene-specific evidence for SCGB2A2.
Reason: The cached PMID:25416956 text is a global interactome map without SCGB2A2-specific interaction evidence, so this annotation cannot be verified from the publication.
Supporting Evidence:
PMID:25416956
A proteome-scale map of the human interactome network.
UniProt:Q13296
Q13296; P50552: VASP; NbExp=3; IntAct=EBI-9058786, EBI-748201;
GO:0008289 lipid binding
IEA NEW
Summary: Secretoglobin family members are reported to bind steroid-like ligands.
Reason: Family-level evidence supports hydrophobic ligand binding as a molecular function.
Supporting Evidence:
file:human/SCGB2A2/SCGB2A2-deep-research-falcon.md
Member of the secretoglobin/uteroglobin superfamily; literature describes steroid-like ligand binding as a shared property in the family.

Core Functions

Secreted secretoglobin that likely binds hydrophobic ligands in extracellular fluids.

Molecular Function:
lipid binding
Cellular Locations:
Supporting Evidence:
  • file:human/SCGB2A2/SCGB2A2-deep-research-falcon.md
    Member of the secretoglobin/uteroglobin superfamily; literature describes steroid-like ligand binding as a shared property in the family.
  • UniProt:Q13296
    SUBCELLULAR LOCATION: Secreted {ECO:0000305}.

References

Loading supporting content…

Download this section (compressed HTML)

Deep Research

Falcon

(SCGB2A2-deep-research-falcon.md)

Loading supporting content…

Download this section (compressed HTML)

πŸ“„ View Raw YAML

Loading supporting content…

Download this section (compressed HTML)