SecY

UniProt ID: P0AGA2
Organism: Escherichia coli K-12
Review Status: COMPLETE
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Gene Description

SecY is the pore-forming subunit of the Escherichia coli SecYEG protein-conducting channel in the inner membrane. Its ten-transmembrane-helix core forms the gated aqueous pore and lateral gate used for post-translational SecA/SecB-dependent export of secretory preproteins and for cotranslational insertion of inner-membrane proteins delivered by SRP. SecY directly contacts signal peptides, SecA, SecE, SecG, ribosomes, and accessory translocon factors during Sec-dependent protein movement into or across the plasma membrane.

Existing Annotations Review

GO Term Evidence Action Reason
GO:0005048 signal sequence receptor activity
IBA
GO_REF:0000033
ACCEPT
Summary: SecY directly binds signal peptides in the SecYEG lateral-gate region.
Reason: Signal-sequence binding is a mechanistic subactivity of the pore-forming SecY subunit.
Propagation Review
Root cause: NO FAILURE CORE
Sources checked:
PANTHER:PTN000097337 · PANTHER:PTN000097337 SUPPORTS TRANSFER
The PAINT trace is consistent with the Sec-family placement; the review action reflects whether the GOA term and qualifier are at the right specificity for this E. coli subunit.
UniProtKB:P0AGA2 · UniProtKB:P0AGA2 SUPPORTS TRANSFER
The PAINT trace is consistent with the Sec-family placement; the review action reflects whether the GOA term and qualifier are at the right specificity for this E. coli subunit.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY directly contributes the protein-conducting pore and signal-peptide-interacting lateral gate.
PMID:15476412
The signal peptide was found to specifically bind SecY in a saturable manner and at levels comparable to those that stimulate SecA ATPase activity.
GO:0005048 signal sequence receptor activity
IDA
PMID:15476412
Demonstration of a specific Escherichia coli SecY-signal pep...
ACCEPT
Summary: SecY directly binds signal peptides in the SecYEG lateral-gate region.
Reason: Signal-sequence binding is a mechanistic subactivity of the pore-forming SecY subunit.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY directly contributes the protein-conducting pore and signal-peptide-interacting lateral gate.
PMID:15476412
The signal peptide was found to specifically bind SecY in a saturable manner and at levels comparable to those that stimulate SecA ATPase activity.
GO:0005515 protein binding
IPI
PMID:15815684
FtsY, the bacterial signal-recognition particle receptor, in...
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005515 protein binding
IPI
PMID:17060619
Different modes of SecY-SecA interactions revealed by site-d...
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005515 protein binding
IPI
PMID:17060619
Different modes of SecY-SecA interactions revealed by site-d...
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005515 protein binding
IPI
PMID:18761620
Assembly of the translocase motor onto the preprotein-conduc...
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005515 protein binding
IPI
PMID:18923526
A role for the two-helix finger of the SecA ATPase in protei...
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005515 protein binding
IPI
PMID:19924216
Signal peptides are allosteric activators of the protein tra...
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005515 protein binding
IPI
PMID:19924216
Signal peptides are allosteric activators of the protein tra...
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005515 protein binding
IPI
PMID:20479269
The action of cardiolipin on the bacterial translocon.
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005515 protein binding
IPI
PMID:20479269
The action of cardiolipin on the bacterial translocon.
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005515 protein binding
IPI
PMID:20479269
The action of cardiolipin on the bacterial translocon.
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005515 protein binding
IPI
PMID:20855604
Lateral opening of a translocon upon entry of protein sugges...
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005515 protein binding
IPI
PMID:21255212
The bacterial SRP receptor, SecA and the ribosome use overla...
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005515 protein binding
IPI
PMID:31699901
Noncompetitive binding of PpiD and YidC to the SecYEG transl...
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005515 protein binding
IPI
PMID:9111035
Identification of a region of interaction between Escherichi...
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005515 protein binding
IPI
PMID:9294424
In vivo cross-linking of the SecA and SecY subunits of the E...
REMOVE
Summary: The row records a physical interaction, but GO:0005515 protein binding is too generic to describe the Sec component activity.
Reason: The interaction itself is not rejected. The problem is that GO:0005515 does not say whether the gene product is the SecA motor, the SecY pore, a SecYEG clamp/accessory subunit, or an export precursor. This row should be removed in favor of the more informative Sec molecular-function and process annotations.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
Generic GO:0005515 protein-binding rows for SecY should be removed as uninformative interaction records.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005886 plasma membrane
IBA
GO_REF:0000033
ACCEPT
Summary: SecY is an integral plasma-membrane channel subunit.
Reason: The annotation correctly places SecY in the E. coli inner membrane where SecYEG acts.
Propagation Review
Root cause: NO FAILURE CORE
Sources checked:
PANTHER:PTN000097337 · PANTHER:PTN000097337 SUPPORTS TRANSFER
The PAINT trace is consistent with the Sec-family placement; the review action reflects whether the GOA term and qualifier are at the right specificity for this E. coli subunit.
UniProtKB:P0AGA2 · UniProtKB:P0AGA2 SUPPORTS TRANSFER
The PAINT trace is consistent with the Sec-family placement; the review action reflects whether the GOA term and qualifier are at the right specificity for this E. coli subunit.
UniProtKB:P16336 · UniProtKB:P16336 SUPPORTS TRANSFER
The PAINT trace is consistent with the Sec-family placement; the review action reflects whether the GOA term and qualifier are at the right specificity for this E. coli subunit.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005886 plasma membrane
IDA
PMID:15919996
Global topology analysis of the Escherichia coli inner membr...
ACCEPT
Summary: SecY is an integral plasma-membrane channel subunit.
Reason: The annotation correctly places SecY in the E. coli inner membrane where SecYEG acts.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005886 plasma membrane
IDA
PMID:17309111
Comparison of SDS- and methanol-assisted protein solubilizat...
ACCEPT
Summary: SecY is an integral plasma-membrane channel subunit.
Reason: The annotation correctly places SecY in the E. coli inner membrane where SecYEG acts.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005886 plasma membrane
IDA
PMID:2538820
Site-specific antibodies against the PrlA (secY) protein of ...
ACCEPT
Summary: SecY is an integral plasma-membrane channel subunit.
Reason: The annotation correctly places SecY in the E. coli inner membrane where SecYEG acts.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005886 plasma membrane
IDA
PMID:2538820
Site-specific antibodies against the PrlA (secY) protein of ...
ACCEPT
Summary: SecY is an integral plasma-membrane channel subunit.
Reason: The annotation correctly places SecY in the E. coli inner membrane where SecYEG acts.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005886 plasma membrane
IDA
PMID:3004955
The SecY membrane component of the bacterial protein export ...
ACCEPT
Summary: SecY is an integral plasma-membrane channel subunit.
Reason: The annotation correctly places SecY in the E. coli inner membrane where SecYEG acts.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005886 plasma membrane
IDA
PMID:7650029
SecYEG and SecA are the stoichiometric components of preprot...
ACCEPT
Summary: SecY is an integral plasma-membrane channel subunit.
Reason: The annotation correctly places SecY in the E. coli inner membrane where SecYEG acts.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005886 plasma membrane
IEA
GO_REF:0000120
ACCEPT
Summary: SecY is an integral plasma-membrane channel subunit.
Reason: The annotation correctly places SecY in the E. coli inner membrane where SecYEG acts.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0005886 plasma membrane
TAS
PMID:2202723
Structure, function, and biogenesis of SecY, an integral mem...
ACCEPT
Summary: SecY is an integral plasma-membrane channel subunit.
Reason: The annotation correctly places SecY in the E. coli inner membrane where SecYEG acts.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0006605 protein targeting
IEA
GO_REF:0000104
MODIFY
Summary: This generic targeting row should be replaced by the specific SecYEG-dependent processes.
Reason: SecYEG acts as the membrane channel used by SRP-delivered nascent chains and SecA-delivered precursors; GO:0006616 and GO:0043952 capture those SecY roles more precisely than generic protein targeting.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:10397756
Both targeting pathways intersect at the translocation pore because they are equally affected by a blocked translocation channel.
GO:0006616 SRP-dependent cotranslational protein targeting to membrane, translocation
IBA
GO_REF:0000033
ACCEPT
Summary: SecYEG is the translocon pore used by the bacterial SRP cotranslational insertion route.
Reason: The same SecYEG channel used for SecA-driven export is also the membrane pore for SRP-delivered inner-membrane-protein substrates.
Propagation Review
Root cause: NO FAILURE CORE
Sources checked:
PANTHER:PTN000097217 · PANTHER:PTN000097217 SUPPORTS TRANSFER
The PAINT trace is consistent with the Sec-family placement; the review action reflects whether the GOA term and qualifier are at the right specificity for this E. coli subunit.
SGD:S000004370 · SGD:S000004370 SUPPORTS TRANSFER
The PAINT trace is consistent with the Sec-family placement; the review action reflects whether the GOA term and qualifier are at the right specificity for this E. coli subunit.
UniProtKB:P0AGA2 · UniProtKB:P0AGA2 SUPPORTS TRANSFER
The PAINT trace is consistent with the Sec-family placement; the review action reflects whether the GOA term and qualifier are at the right specificity for this E. coli subunit.
UniProtKB:P61619 · UniProtKB:P61619 SUPPORTS TRANSFER
The PAINT trace is consistent with the Sec-family placement; the review action reflects whether the GOA term and qualifier are at the right specificity for this E. coli subunit.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
The SecYEG pore is used by both the post-translational SecA/SecB route for secretory proteins and the SRP route for cotranslational membrane-protein insertion.
PMID:10397756
Both targeting pathways intersect at the translocation pore because they are equally affected by a blocked translocation channel.
GO:0006616 SRP-dependent cotranslational protein targeting to membrane, translocation
IDA
PMID:10397756
In vitro studies with purified components reveal signal reco...
ACCEPT
Summary: SecYEG is the translocon pore used by the bacterial SRP cotranslational insertion route.
Reason: The same SecYEG channel used for SecA-driven export is also the membrane pore for SRP-delivered inner-membrane-protein substrates.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
The SecYEG pore is used by both the post-translational SecA/SecB route for secretory proteins and the SRP route for cotranslational membrane-protein insertion.
PMID:10397756
Both targeting pathways intersect at the translocation pore because they are equally affected by a blocked translocation channel.
GO:0006616 SRP-dependent cotranslational protein targeting to membrane, translocation
IDA
PMID:9564033
The Escherichia coli SRP and SecB targeting pathways converg...
ACCEPT
Summary: SecYEG is the translocon pore used by the bacterial SRP cotranslational insertion route.
Reason: The same SecYEG channel used for SecA-driven export is also the membrane pore for SRP-delivered inner-membrane-protein substrates.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
The SecYEG pore is used by both the post-translational SecA/SecB route for secretory proteins and the SRP route for cotranslational membrane-protein insertion.
PMID:10397756
Both targeting pathways intersect at the translocation pore because they are equally affected by a blocked translocation channel.
GO:0006886 intracellular protein transport
IMP
PMID:2254269
Characterization of cold-sensitive secY mutants of Escherich...
MODIFY
Summary: This transport term is true but less specific than Sec-complex transport.
Reason: SecY acts as the pore of the Sec channel; GO:0043952 is the precise process term.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0008320 transmembrane protein transporter activity
IBA
GO_REF:0000033
ACCEPT
Summary: SecY is the pore-forming protein transmembrane transporter subunit of SecYEG.
Reason: SecY forms the central channel and lateral gate of the SecYEG protein-conducting pore.
Propagation Review
Root cause: NO FAILURE CORE
Sources checked:
PANTHER:PTN000097217 · PANTHER:PTN000097217 SUPPORTS TRANSFER
The PAINT trace is consistent with the Sec-family placement; the review action reflects whether the GOA term and qualifier are at the right specificity for this E. coli subunit.
SGD:S000004370 · SGD:S000004370 SUPPORTS TRANSFER
The PAINT trace is consistent with the Sec-family placement; the review action reflects whether the GOA term and qualifier are at the right specificity for this E. coli subunit.
UniProtKB:P0AGA2 · UniProtKB:P0AGA2 SUPPORTS TRANSFER
The PAINT trace is consistent with the Sec-family placement; the review action reflects whether the GOA term and qualifier are at the right specificity for this E. coli subunit.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0008320 transmembrane protein transporter activity
IDA
PMID:1531482
SecY, SecE, and band 1 form the membrane-embedded domain of ...
ACCEPT
Summary: SecY is the pore-forming protein transmembrane transporter subunit of SecYEG.
Reason: SecY forms the central channel and lateral gate of the SecYEG protein-conducting pore.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0008320 transmembrane protein transporter activity
IDA
PMID:2139227
Solubilization and functional reconstitution of the protein-...
ACCEPT
Summary: SecY is the pore-forming protein transmembrane transporter subunit of SecYEG.
Reason: SecY forms the central channel and lateral gate of the SecYEG protein-conducting pore.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0008320 transmembrane protein transporter activity
IDA
PMID:2167176
The purified E. coli integral membrane protein SecY/E is suf...
ACCEPT
Summary: SecY is the pore-forming protein transmembrane transporter subunit of SecYEG.
Reason: SecY forms the central channel and lateral gate of the SecYEG protein-conducting pore.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0008320 transmembrane protein transporter activity
IDA
PMID:3017993
The secY protein can act post-translationally to promote bac...
ACCEPT
Summary: SecY is the pore-forming protein transmembrane transporter subunit of SecYEG.
Reason: SecY forms the central channel and lateral gate of the SecYEG protein-conducting pore.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0008320 transmembrane protein transporter activity
IDA
PMID:7650029
SecYEG and SecA are the stoichiometric components of preprot...
ACCEPT
Summary: SecY is the pore-forming protein transmembrane transporter subunit of SecYEG.
Reason: SecY forms the central channel and lateral gate of the SecYEG protein-conducting pore.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0015031 protein transport
IEA
GO_REF:0000002
MODIFY
Summary: This broad protein-transport row should be made Sec-specific.
Reason: SecY mediates protein transport by the Sec complex.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0016020 membrane
IDA
PMID:3004955
The SecY membrane component of the bacterial protein export ...
MODIFY
Summary: SecY is specifically an inner/plasma membrane protein.
Reason: The generic membrane term should be replaced by GO:0005886 plasma membrane for E. coli SecY.
Proposed replacements: plasma membrane
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0016020 membrane
IDA
PMID:8253068
A novel membrane protein involved in protein translocation a...
MODIFY
Summary: SecY is specifically an inner/plasma membrane protein.
Reason: The generic membrane term should be replaced by GO:0005886 plasma membrane for E. coli SecY.
Proposed replacements: plasma membrane
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0016020 membrane
IEA
GO_REF:0000120
MODIFY
Summary: SecY is specifically an inner/plasma membrane protein.
Reason: The generic membrane term should be replaced by GO:0005886 plasma membrane for E. coli SecY.
Proposed replacements: plasma membrane
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0016020 membrane
NAS
PMID:8253068
A novel membrane protein involved in protein translocation a...
MODIFY
Summary: SecY is specifically an inner/plasma membrane protein.
Reason: The generic membrane term should be replaced by GO:0005886 plasma membrane for E. coli SecY.
Proposed replacements: plasma membrane
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0031522 cell envelope Sec protein transport complex
IBA
GO_REF:0000033
ACCEPT
Summary: SecY is a core subunit of the SecYEG cell-envelope Sec transport complex.
Reason: SecY, SecE, and SecG constitute the membrane-embedded domain of the preprotein translocase.
Propagation Review
Root cause: NO FAILURE CORE
Sources checked:
PANTHER:PTN000097337 · PANTHER:PTN000097337 SUPPORTS TRANSFER
The PAINT trace is consistent with the Sec-family placement; the review action reflects whether the GOA term and qualifier are at the right specificity for this E. coli subunit.
UniProtKB:P0AGA2 · UniProtKB:P0AGA2 SUPPORTS TRANSFER
The PAINT trace is consistent with the Sec-family placement; the review action reflects whether the GOA term and qualifier are at the right specificity for this E. coli subunit.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:1531482
These data establish that the subunits of SecY/E are firmly associated and that it is the associated complex which is active for translocation.
GO:0031522 cell envelope Sec protein transport complex
IDA
PMID:1531482
SecY, SecE, and band 1 form the membrane-embedded domain of ...
ACCEPT
Summary: SecY is a core subunit of the SecYEG cell-envelope Sec transport complex.
Reason: SecY, SecE, and SecG constitute the membrane-embedded domain of the preprotein translocase.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:1531482
These data establish that the subunits of SecY/E are firmly associated and that it is the associated complex which is active for translocation.
GO:0031522 cell envelope Sec protein transport complex
IDA
PMID:2167176
The purified E. coli integral membrane protein SecY/E is suf...
ACCEPT
Summary: SecY is a core subunit of the SecYEG cell-envelope Sec transport complex.
Reason: SecY, SecE, and SecG constitute the membrane-embedded domain of the preprotein translocase.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:1531482
These data establish that the subunits of SecY/E are firmly associated and that it is the associated complex which is active for translocation.
GO:0031522 cell envelope Sec protein transport complex
IPI
PMID:16292303
Structure of the E. coli protein-conducting channel bound to...
ACCEPT
Summary: SecY is a core subunit of the SecYEG cell-envelope Sec transport complex.
Reason: SecY, SecE, and SecG constitute the membrane-embedded domain of the preprotein translocase.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:1531482
These data establish that the subunits of SecY/E are firmly associated and that it is the associated complex which is active for translocation.
GO:0031522 cell envelope Sec protein transport complex
IPI
PMID:27924919
A central cavity within the holo-translocon suggests a mecha...
ACCEPT
Summary: SecY is a core subunit of the SecYEG cell-envelope Sec transport complex.
Reason: SecY, SecE, and SecG constitute the membrane-embedded domain of the preprotein translocase.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:1531482
These data establish that the subunits of SecY/E are firmly associated and that it is the associated complex which is active for translocation.
GO:0043952 protein transport by the Sec complex
IDA
PMID:11867527
The SecYEG preprotein translocation channel is a conformatio...
ACCEPT
Summary: SecY is a core protein transport by the Sec complex component.
Reason: The SecY pore directly executes Sec-dependent movement of polypeptides into or across the membrane.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0043952 protein transport by the Sec complex
IDA
PMID:1531482
SecY, SecE, and band 1 form the membrane-embedded domain of ...
ACCEPT
Summary: SecY is a core protein transport by the Sec complex component.
Reason: The SecY pore directly executes Sec-dependent movement of polypeptides into or across the membrane.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0043952 protein transport by the Sec complex
IDA
PMID:2167176
The purified E. coli integral membrane protein SecY/E is suf...
ACCEPT
Summary: SecY is a core protein transport by the Sec complex component.
Reason: The SecY pore directly executes Sec-dependent movement of polypeptides into or across the membrane.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0043952 protein transport by the Sec complex
IDA
PMID:24550475
Membrane protein insertion and proton-motive-force-dependent...
ACCEPT
Summary: SecY is a core protein transport by the Sec complex component.
Reason: The SecY pore directly executes Sec-dependent movement of polypeptides into or across the membrane.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0043952 protein transport by the Sec complex
IDA
PMID:7650029
SecYEG and SecA are the stoichiometric components of preprot...
ACCEPT
Summary: SecY is a core protein transport by the Sec complex component.
Reason: The SecY pore directly executes Sec-dependent movement of polypeptides into or across the membrane.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0043952 protein transport by the Sec complex
IEA
GO_REF:0000104
ACCEPT
Summary: SecY is a core protein transport by the Sec complex component.
Reason: The SecY pore directly executes Sec-dependent movement of polypeptides into or across the membrane.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0043952 protein transport by the Sec complex
IMP
PMID:2254269
Characterization of cold-sensitive secY mutants of Escherich...
ACCEPT
Summary: SecY is a core protein transport by the Sec complex component.
Reason: The SecY pore directly executes Sec-dependent movement of polypeptides into or across the membrane.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0065002 intracellular protein transmembrane transport
EXP
PMID:6297749
A previously unidentified gene in the spc operon of Escheric...
MODIFY
Summary: This is a correct but less specific parent of Sec-complex protein transmembrane transport.
Reason: GO:0043952 records the same transport role with the appropriate Sec-complex specificity.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0065002 intracellular protein transmembrane transport
EXP
PMID:6370688
A defined mutation in the protein export gene within the spc...
MODIFY
Summary: This is a correct but less specific parent of Sec-complex protein transmembrane transport.
Reason: GO:0043952 records the same transport role with the appropriate Sec-complex specificity.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0065002 intracellular protein transmembrane transport
IDA
PMID:2139227
Solubilization and functional reconstitution of the protein-...
MODIFY
Summary: This is a correct but less specific parent of Sec-complex protein transmembrane transport.
Reason: GO:0043952 records the same transport role with the appropriate Sec-complex specificity.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0065002 intracellular protein transmembrane transport
IDA
PMID:3017993
The secY protein can act post-translationally to promote bac...
MODIFY
Summary: This is a correct but less specific parent of Sec-complex protein transmembrane transport.
Reason: GO:0043952 records the same transport role with the appropriate Sec-complex specificity.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0065002 intracellular protein transmembrane transport
IDA
PMID:7650029
SecYEG and SecA are the stoichiometric components of preprot...
MODIFY
Summary: This is a correct but less specific parent of Sec-complex protein transmembrane transport.
Reason: GO:0043952 records the same transport role with the appropriate Sec-complex specificity.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0065002 intracellular protein transmembrane transport
IEA
GO_REF:0000104
MODIFY
Summary: This is a correct but less specific parent of Sec-complex protein transmembrane transport.
Reason: GO:0043952 records the same transport role with the appropriate Sec-complex specificity.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.
GO:0065002 intracellular protein transmembrane transport
IMP
PMID:2254269
Characterization of cold-sensitive secY mutants of Escherich...
MODIFY
Summary: This is a correct but less specific parent of Sec-complex protein transmembrane transport.
Reason: GO:0043952 records the same transport role with the appropriate Sec-complex specificity.
Supporting Evidence:
file:ECOLI/SecY/SecY-notes.md
SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
PMID:7650029
These data establish that SecY, SecE, and SecG constitute the integral membrane domain of preprotein translocase.

Core Functions

SecY forms the protein-conducting pore and signal-peptide-interacting lateral gate of the inner-membrane SecYEG channel used for SecA-driven post-translational export and SRP-linked cotranslational insertion.

Supporting Evidence:
  • file:ECOLI/SecY/SecY-notes.md
    SecY is the pore-forming alpha subunit of the SecYEG inner-membrane channel.
  • PMID:1531482
    These data establish that the subunits of SecY/E are firmly associated and that it is the associated complex which is active for translocation.

SecY directly binds signal peptides at the SecYEG lateral gate during substrate engagement.

Supporting Evidence:
  • PMID:15476412
    The signal peptide was found to specifically bind SecY in a saturable manner and at levels comparable to those that stimulate SecA ATPase activity.

References

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Suggested Questions for Experts

Q: How are SecYEG copies partitioned in vivo between minimal SecA-engaged channels, ribosome-engaged channels, and SecDF-YajC-YidC holo-translocons under different envelope biogenesis demands?

📚 Additional Documentation

Notes

(SecY-notes.md)

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📄 View Raw YAML

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