UniProt functional annotation for P62158

UniProt codes: P62158, P02593.

Organism: Homo sapiens (Human).
Taxonomy: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo.
 
Function: Calmodulin mediates the control of a large number of enzymes, ion channels, aquaporins and other proteins by Ca(2+). Among the enzymes to be stimulated by the calmodulin-Ca(2+) complex are a number of protein kinases and phosphatases. Together with CCP110 and centrin, is involved in a genetic pathway that regulates the centrosome cycle and progression through cytokinesis.
 
Subunit: Interacts with MYO1C, MYO5A and RRAD. Interacts with MYO10 (By similarity). Interacts with CEP97, CCP110, TTN/titin and SRY. Interacts with USP6; the interaction is calcium dependent. Interacts with CDK5RAP2. Interacts with SCN5A. Interacts with RYR1 and RYR2. 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.
Subcellular location: Cytoplasm, cytoskeleton, spindle. Cytoplasm, cytoskeleton, spindle pole. Note=Distributed throughout the cell during interphase, but during mitosis becomes dramatically localized to the spindle poles and the spindle microtubules.
Ptm: Ubiquitination results in a strongly decreased activity (By similarity).
Ptm: Phosphorylation results in a decreased activity (By similarity).
Disease: Ventricular tachycardia, catecholaminergic polymorphic, 4 (CPVT4) [MIM:614916]: An arrhythmogenic disorder characterized by stress-induced, bidirectional ventricular tachycardia that may degenerate into cardiac arrest and cause sudden death. Patients present with recurrent syncope, seizures, or sudden death after physical activity or emotional stress. Note=The disease is caused by mutations affecting the gene represented in this entry.
Miscellaneous: This protein has four functional calcium-binding sites.
Similarity: Belongs to the calmodulin family.
Similarity: Contains 4 EF-hand domains.
Sequence caution: Sequence=CAA36839.1; Type=Erroneous gene model prediction;

Annotations taken from UniProtKB at the EBI.