Calmodulin (CALM1) Active Protein

This gene encodes a member of the EF-hand calcium-binding protein family. It is one of three genes which encode an identical calcium binding protein which is one of the four subunits of phosphorylase kinase. Two pseudogenes have been identified on chromosome 7 and X. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Oct 2009]

Calmodulin: a calcium-binding small regulatory protein that mediates the control of a large number of enzymes by Ca(2+). Among the enzymes to be stimulated by the calmodulin-Ca(2+) complex are a number of protein kinases and phosphatases. Has four functional calcium-binding domains. Phosphorylation and ubiquitination result in a decreased activity.

Protein type: Calcium-binding

Chromosomal Location of Human Ortholog: 14q32.11

Cellular Component: nucleoplasm; spindle pole; centrosome; sarcomere; growth cone; spindle microtubule; cytoplasm; plasma membrane; extracellular region; nucleus; cytosol; vesicle

Molecular Function: protein domain specific binding; nitric-oxide synthase regulator activity; titin binding; calcium ion binding; protein kinase binding; calcium-dependent protein binding; protein serine/threonine kinase activator activity; protein binding; N-terminal myristoylation domain binding; phospholipase binding; thioesterase binding; type 3 metabotropic glutamate receptor binding; phosphoinositide 3-kinase binding; nitric-oxide synthase binding; adenylate cyclase binding

Biological Process: positive regulation of phosphoprotein phosphatase activity; phototransduction, visible light; inositol phosphate metabolic process; nerve growth factor receptor signaling pathway; pathogenesis; signal transduction; nitric oxide metabolic process; positive regulation of protein amino acid dephosphorylation; synaptic transmission; platelet degranulation; substantia nigra development; muscle contraction; positive regulation of cyclic nucleotide metabolic process; response to corticosterone stimulus; epidermal growth factor receptor signaling pathway; platelet activation; mitochondrion organization and biogenesis; fibroblast growth factor receptor signaling pathway; glycogen catabolic process; regulation of heart rate; organelle organization and biogenesis; positive regulation of nitric-oxide synthase activity; adenylate cyclase activation; response to amphetamine; glucose metabolic process; positive regulation of protein amino acid autophosphorylation; regulation of cytokinesis; rhodopsin mediated signaling; G-protein coupled receptor protein signaling pathway; regulation of rhodopsin mediated signaling; phospholipase C activation; carbohydrate metabolic process; innate immune response; positive regulation of cyclic-nucleotide phosphodiesterase activity; regulation of nitric-oxide synthase activity; detection of calcium ion; blood coagulation; vascular endothelial growth factor receptor signaling pathway; response to calcium ion

Disease: Long Qt Syndrome 14; Ventricular Tachycardia, Catecholaminergic Polymorphic, 4