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:O00391 QSOX1

Class:IdReferenceGeneProduct:244553
_chainChangeLogsignal peptide:1-29 added on Sat February 7 2015;chain:30-747 added on Sat February 7 2015
_displayNameUniProt:O00391 QSOX1
_timestamp2025-02-21 19:21:50
chainsignal peptide:1-29
chain:30-747
checksum52639D09A50E00C5
commentFUNCTION Catalyzes the oxidation of sulfhydryl groups in peptide and protein thiols to disulfides with the reduction of oxygen to hydrogen peroxide (PubMed:17331072, PubMed:18393449, PubMed:23704371, PubMed:23867277, PubMed:30367560). Plays a role in disulfide bond formation in a variety of extracellular proteins (PubMed:17331072, PubMed:22801504, PubMed:23867277, PubMed:30367560). In fibroblasts, required for normal incorporation of laminin into the extracellular matrix, and thereby for normal cell-cell adhesion and cell migration (PubMed:23704371, PubMed:23867277, PubMed:30367560).CATALYTIC ACTIVITY 2 R'C(R)SH + O2 = R'C(R)S-S(R)CR' + H2O2COFACTOR Binds 1 FAD per subunit.SUBUNIT Monomer.SUBCELLULAR LOCATION A small proportion is secreted, probably via a proteolytic cleavage that removes the membrane anchor.SUBCELLULAR LOCATION Found in the extracellular medium of quiescent cells but is not found in proliferating cells.ALTERNATIVE PRODUCTS Expressed in heart, placenta, lung, liver, skeletal muscle, pancreas and very weakly in brain and kidney.INDUCTION Induced in quiescent cells just as fibroblasts begin to leave the proliferative cycle and enter quiescence.PTM N-glycosylated (PubMed:17331072, PubMed:29757379). O-glycosylated on Thr and Ser residues (PubMed:29757379).MISCELLANEOUS 'Quiescin Q6' means that it was the sixth clone to be found at a higher level of expression in quiescent fibroblasts.SIMILARITY Belongs to the quiescin-sulfhydryl oxidase (QSOX) family.SEQUENCE CAUTION Extended N-terminus.
created[InstanceEdit:217385] Schmidt, EE, 2008-03-27 06:23:53
descriptionrecommendedName: Sulfhydryl oxidase 1 shortName: hQSOX ecNumber evidence="10 13 14 15 17 18 19"1.8.3.2 alternativeName: fullName evidence="23 28"Quiescin Q6
geneNameQSOX1
QSCN6
UNQ2520/PRO6013
identifierO00391
isSequenceChangedFALSE
keyword3D-structure
Alternative splicing
Disulfide bond
FAD
Flavoprotein
Glycoprotein
Golgi apparatus
Membrane
Oxidoreductase
Phosphoprotein
Proteomics identification
Reference proteome
Secreted
Signal
Transmembrane
Transmembrane helix
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9939033] Weiser, Joel, 2025-02-21
nameQSOX1
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:9004913] ENSEMBL:ENSG00000116260 QSOX1 [Homo sapiens]
secondaryIdentifierQSOX1_HUMAN
Q59G29
Q5T2X0
Q8TDL6
Q8WVP4
sequenceLength747
species[Species:48887] Homo sapiens
(isoformParent)[ReferenceIsoform:244554] UniProt:O00391-2 QSOX1 [Homo sapiens]
[ReferenceIsoform:401110] UniProt:O00391-1 QSOX1 [Homo sapiens]
(referenceEntity)[EntityWithAccessionedSequence:6799714] QSOX1 [specific granule lumen] [Homo sapiens]
[EntityWithAccessionedSequence:6800466] QSOX1 [extracellular region] [Homo sapiens]
[EntityWithAccessionedSequence:6800984] QSOX1 [tertiary granule lumen] [Homo sapiens]
[EntityWithAccessionedSequence:8848890] QSOX1 [platelet alpha granule lumen] [Homo sapiens]
[EntityWithAccessionedSequence:8956765] QSOX1 [endoplasmic reticulum lumen] [Homo sapiens]
[EntityWithAccessionedSequence:8956895] p-QSOX1 [endoplasmic reticulum lumen] [Homo sapiens]
(referenceSequence)[ModifiedResidue:8956970] phosphorylated residue at unknown position
[Change default viewing format]
No pathways have been reviewed or authored by UniProt:O00391 QSOX1 (244553)