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:O95843-2 GUCA1C

Class:IdReferenceIsoform:147824
_chainChangeLoginitiator methionine:1 added on Sat February 7 2015;chain:2-209 added on Sat February 7 2015;initiator methionine:1 for 147824 removed on Fri Nov 03 2023;initiator methionine: for 147824 added on Fri Nov 03 2023;initiator methionine: for 147824 removed on Fri Aug 15 2025;initiator methionine:1 for 147824 added on Fri Aug 15 2025
_displayNameUniProt:O95843-2 GUCA1C
_timestamp2026-02-20 23:06:03
chaininitiator methionine:1
chain:2-209
checksumA407E7D4AEBBAED3
commentFUNCTION Stimulates guanylyl cyclase 1 (GC1) and GC2 when free calcium ions concentration is low and inhibits guanylyl cyclases when free calcium ions concentration is elevated. This Ca(2+)-sensitive regulation of guanylyl cyclase (GC) is a key event in recovery of the dark state of rod photoreceptors following light exposure.INTERACTION Retina.DOMAIN Binds three calcium ions (via EF-hand 2, 3 and 4).
descriptionrecommendedName: Guanylyl cyclase-activating protein 3 shortName: GCAP 3 alternativeName: Guanylate cyclase activator 1C
geneNameGUCA1C
GCAP3
identifierO95843
isoformParent
isSequenceChangedFALSE
keyword3D-structure
Alternative splicing
Calcium
Lipoprotein
Metal-binding
Myristate
Proteomics identification
Reference proteome
Repeat
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9963647] Weiser, Joel, 2025-08-15
[InstanceEdit:9983091] Weiser, Joel, 2026-02-20
nameGUCA1C
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8997736] ENSEMBL:ENSG00000138472 GUCA1C [Homo sapiens]
secondaryIdentifierGUC1C_HUMAN
O95844
Q9UNM0
sequenceLength209
species[Species:48887] Homo sapiens
variantIdentifierO95843-2
[Change default viewing format]
No pathways have been reviewed or authored by UniProt:O95843-2 GUCA1C (147824)