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:P62157 CALM

Class:IdReferenceGeneProduct:51314
_chainChangeLoginitiator methionine:1 added on Fri February 6 2015;chain:2-149 added on Fri February 6 2015;initiator methionine:1 for 51314 removed on Fri Nov 03 2023;initiator methionine: for 51314 added on Fri Nov 03 2023;initiator methionine: for 51314 removed on Fri Aug 15 2025;initiator methionine:1 for 51314 added on Fri Aug 15 2025
_displayNameUniProt:P62157 CALM
_timestamp2025-08-15 21:36:32
chaininitiator methionine:1
chain:2-149
checksum6B4BC3FCDE10727B
commentFUNCTION Calmodulin acts as part of a calcium signal transduction pathway by mediating the control of a large number of enzymes, ion channels, aquaporins and other proteins through calcium-binding. Calcium-binding is required for the activation of calmodulin. Among the enzymes to be stimulated by the calmodulin-calcium complex are a number of protein kinases, such as myosin light-chain kinases and calmodulin-dependent protein kinase type II (CaMK2), and phosphatases. Together with CCP110 and centrin, is involved in a genetic pathway that regulates the centrosome cycle and progression through cytokinesis. Is a regulator of voltage-dependent L-type calcium channels. Mediates calcium-dependent inactivation of CACNA1C. Positively regulates calcium-activated potassium channel activity of KCNN2. Forms a potassium channel complex with KCNQ1 and regulates electrophysiological activity of the channel via calcium-binding. Acts as a sensor to modulate the endoplasmic reticulum contacts with other organelles mediated by VMP1:ATP2A2.SUBUNIT Homotetramer (By similarity). Interacts with CEP97, CCP110, TTN/titin and SRY. Interacts with MYO5A and RRAD (By similarity). Interacts with USP6; the interaction is calcium dependent (By similarity). Interacts with CDK5RAP2. Interacts with SCN5A. Interacts with RYR1 and RYR2 (By similarity). Interacts with FCHO1. Interacts with MIP in a 1:2 stoichiometry; the interaction with the cytoplasmic domains from two MIP subunits promotes MIP water channel closure. Interacts with ORAI1; this may play a role in the regulation of ORAI1-mediated calcium transport. Interacts with SYT7 (By similarity). Interacts with MYO10 and MYO1C (PubMed:11457842, PubMed:8022785). Interacts with SLC9A1 in a calcium-dependent manner (By similarity). Interacts with HINT1; interaction increases in the presence of calcium ions (By similarity). Interacts with HINT3 (By similarity). Interacts with SLC26A5 (via STAS domain); this interaction is calcium-dependent and the STAS domain interacts with only one lobe of CALM which is an elongated conformation (By similarity). Ca(2+)-bound CALM1 binds CNGA1:CNGB1 channel (via CaM1 and CaM2 regions); this interaction modulates the affinity of the channel for cNMPs in response to intracellular Ca(2+) levels. Interacts with KCNN4; this interaction allows channel opening (By similarity). Interacts with KCNN2; this interaction regulates the channel activity through calcium-binding (By similarity).INTERACTION Distributed throughout the cell during interphase, but during mitosis becomes dramatically localized to the spindle poles and the spindle microtubules.DOMAIN The N-terminal and C-terminal lobes of CALM bind to the C-terminus of KCNQ1 in a clamp-like conformation. Binding of CALM C-terminus to KCNQ1 is calcium-independent but is essential for assembly of the structure. Binding of CALM N-terminus to KCNQ1 is calcium-dependent and regulates electrophysiological activity of the channel. The C-lobe interacts with KCNN4 channels in a calcium-independent manner, whereas the N-lobe interacts with the S4-S5 linker of KCNN4 in a calcium-dependent manner playing a role as calcium sensor and gating the channel.PTM Ubiquitination results in a strongly decreased activity.PTM Phosphorylation results in a decreased activity.MISCELLANEOUS This protein has four functional calcium-binding sites.SIMILARITY Belongs to the calmodulin family.
descriptionrecommendedName: Calmodulin shortName: CaM
geneNameCALM
CAM
identifierP62157
isSequenceChangedFALSE
keyword3D-structure
Acetylation
Calcium
Cytoplasm
Cytoskeleton
Direct protein sequencing
Isopeptide bond
Metal-binding
Methylation
Phosphoprotein
Reference proteome
Repeat
Ubl conjugation
modified[InstanceEdit:84067] Schmidt, EE, 2003-12-18 04:29:09
[InstanceEdit:143527] Schmidt, EE, 2004-11-12 07:45:10
[InstanceEdit:217385] Schmidt, EE, 2008-03-27 06:23:53
[InstanceEdit:354386] Schmidt, EE, 2008-06-18 04:45:12
[InstanceEdit:384350] Kanapin, AA, 2008-11-26 14:00:39
[InstanceEdit:392885] Kanapin, AA, 2009-03-09 12:07:18
[InstanceEdit:400710] Schmidt, EE, 2009-03-25 05:33:35
[InstanceEdit:423310] Kanapin, AA
[InstanceEdit:435478] Kanapin, AA
[InstanceEdit:435871] Kanapin, AA
[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:2455454] Weiser, JD
[InstanceEdit:3132113] Weiser, JD
[InstanceEdit:5433710] Weiser, JD
[InstanceEdit:5618415] Weiser, JD
[InstanceEdit:5634237] Weiser, JD
[InstanceEdit:5673015] Weiser, JD
[InstanceEdit:9037114] Weiser, JD
[InstanceEdit:9637257] Weiser, JD
[InstanceEdit:9645058] Weiser, JD
[InstanceEdit:9657908] Weiser, JD
[InstanceEdit:9676415] Weiser, JD
[InstanceEdit:9767224] Weiser, Joel
[InstanceEdit:9819394] Weiser, Joel
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9963647] Weiser, Joel, 2025-08-15
nameCALM
referenceDatabase[ReferenceDatabase:2] UniProt
secondaryIdentifierCALM_BOVIN
P02593
P70667
P99014
Q08D84
Q2KJE6
Q61379
Q61380
sequenceLength149
species[Species:48898] Bos taurus
(referenceEntity)[EntityWithAccessionedSequence:74015] Calmodulin [cytosol] [Bos taurus]
[Change default viewing format]
No pathways have been reviewed or authored by UniProt:P62157 CALM (51314)