Reactome: A Curated Pathway Database
THIS SITE IS USED FOR CURATION AND TESTING
IT IS NOT STABLE, IS LINKED TO AN INCOMPLETE DATA SET, AND IS NOT MONITORED FOR PERFORMANCE. WE STRONGLY RECOMMEND THE USE OF OUR PUBLIC SITE

Query author contributions in Reactome

Reactome depends on collaboration between our curation team and outside experts to assemble and peer-review its pathway modules. The integration of ORCID within Reactome enables us to meet a key challenge with authoring, curating and reviewing biological information by incentivizing and crediting the external experts that contribute their expertise and time to the Reactome curation process. More information is available at ORCID and Reactome.

If you have an ORCID ID that is not listed on this page, please forward this information to us and we will update your Reactome pathway records.

Name Email address

Details on Person UniProt:P38377 SEC61A1

Class:IdReferenceGeneProduct:445282
_chainChangeLoginitiator methionine:1 added on Sat February 7 2015;chain:2-476 added on Sat February 7 2015;initiator methionine:1 for 445282 removed on Fri Nov 03 2023;initiator methionine: for 445282 added on Fri Nov 03 2023;initiator methionine: for 445282 removed on Fri Aug 15 2025;initiator methionine:1 for 445282 added on Fri Aug 15 2025
_displayNameUniProt:P38377 SEC61A1
_timestamp2025-08-15 22:04:11
chaininitiator methionine:1
chain:2-476
checksumB1A9B7A6697327FE
commentFUNCTION Component of SEC61 channel-forming translocon complex that mediates transport of signal peptide-containing precursor polypeptides across the endoplasmic reticulum (ER) (PubMed:10799540, PubMed:1423609). Forms a ribosome receptor and a gated pore in the ER membrane, both functions required for cotranslational translocation of nascent polypeptides (By similarity). May cooperate with auxiliary protein SEC62, SEC63 and HSPA5/BiP to enable post-translational transport of small presecretory proteins (By similarity). The SEC61 channel is also involved in ER membrane insertion of transmembrane proteins: it mediates membrane insertion of the first few transmembrane segments of proteins, while insertion of subsequent transmembrane regions of multi-pass membrane proteins is mediated by the multi-pass translocon (MPT) complex (PubMed:36261528). The SEC61 channel cooperates with the translocating protein TRAM1 to import nascent proteins into the ER (By similarity). Controls the passive efflux of calcium ions from the ER lumen to the cytosol through SEC61 channel, contributing to the maintenance of cellular calcium homeostasis (By similarity). Plays a critical role in nephrogenesis, specifically at pronephros stage (By similarity).SUBUNIT The SEC61 channel-forming translocon complex consists of channel-forming core components SEC61A1, SEC61B and SEC61G and different auxiliary components such as SEC62 and SEC63 (PubMed:10799540, PubMed:1423609, PubMed:36261528). The SEC61 channel associates with the multi-pass translocon (MPT) complex (PubMed:36261528).INTERACTION Localizes exclusively in granular structures in the endoplasmic reticulum (ER).SIMILARITY Belongs to the SecY/SEC61-alpha family.
created[InstanceEdit:445274] May, B, 2009-10-29
descriptionrecommendedName: Protein transport protein Sec61 subunit alpha isoform 1 shortName: Sec61 alpha-1
geneNameSEC61A1
identifierP38377
isSequenceChangedFALSE
keyword3D-structure
Developmental protein
Direct protein sequencing
Endoplasmic reticulum
Membrane
Protein transport
Reference proteome
Translocation
Transmembrane
Transmembrane helix
Transport
modified[InstanceEdit:445291] May, B, 2009-10-29
[InstanceEdit:447347] Kanapin, AA
[InstanceEdit:525883] Kanapin, AA
[InstanceEdit:613449] Kanapin, AA
[InstanceEdit:797602] Kanapin, AA
[InstanceEdit:937368] Yung, CK
[InstanceEdit:1042053] Yung, CK
[InstanceEdit:1220657] Yung, CK
[InstanceEdit:1300696] Yung, CK
[InstanceEdit:1301627] Yung, CK
[InstanceEdit:1551960] Weiser, JD
[InstanceEdit:1995863] Weiser, JD
[InstanceEdit:2132304] Weiser, JD
[InstanceEdit:2265580] Weiser, JD
[InstanceEdit:5634237] Weiser, JD
[InstanceEdit:5673015] Weiser, JD
[InstanceEdit:8856987] Weiser, JD
[InstanceEdit:8964659] Weiser, JD
[InstanceEdit:9037114] Weiser, JD
[InstanceEdit:9627708] Weiser, JD
[InstanceEdit:9637257] Weiser, JD
[InstanceEdit:9657908] Weiser, JD
[InstanceEdit:9676415] Weiser, JD
[InstanceEdit:9730071] Weiser, JD
[InstanceEdit:9750299] Weiser, JD
[InstanceEdit:9834092] Weiser, Joel
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9963647] Weiser, Joel, 2025-08-15
nameSEC61A1
referenceDatabase[ReferenceDatabase:2] UniProt
secondaryIdentifierS61A1_CANLF
sequenceLength476
species[Species:49646] Canis familiaris
(referenceEntity)[EntityWithAccessionedSequence:445272] S61A1_CANFA [endoplasmic reticulum membrane] [Canis familiaris]
[Change default viewing format]
No pathways have been reviewed or authored by UniProt:P38377 SEC61A1 (445282)