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; extracellular region; plasma membrane; cytosol; nucleus; 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; phospholipase binding; N-terminal myristoylation domain binding; thioesterase binding; phosphoinositide 3-kinase binding; type 3 metabotropic glutamate receptor 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; substantia nigra development; platelet degranulation; muscle contraction; positive regulation of cyclic nucleotide metabolic process; response to corticosterone stimulus; epidermal growth factor receptor signaling pathway; mitochondrion organization and biogenesis; platelet activation; fibroblast growth factor receptor signaling pathway; glycogen catabolic process; regulation of heart rate; positive regulation of nitric-oxide synthase activity; organelle organization and biogenesis; adenylate cyclase activation; response to amphetamine; glucose metabolic process; regulation of cytokinesis; positive regulation of protein amino acid autophosphorylation; 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; vascular endothelial growth factor receptor signaling pathway; blood coagulation; response to calcium ion
Disease: Long Qt Syndrome 14; Ventricular Tachycardia, Catecholaminergic Polymorphic, 4
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