TRPM4 Products

Description

FUNCTION: Calcium-activated non selective (CAN) cation channel that mediates membrane depolarization. While it is activated by increase in intracellular Ca(2+), it is impermeable to it. Mediates transport of monovalent cations (Na(+) > K(+) > Cs(+) > Li(+)), leading to depolarize the membrane. It thereby plays a central role in cadiomyocytes, neurons from entorhinal cortex, dorsal root and vomeronasal neurons, endocrine pancreas cells, kidney epithelial cells, cochlea hair cells etc. Participates in T-cell activation by modulating Ca(2+) oscillations after T lymphocyte activation, which is required for NFAT-dependent IL2 production. Involved in myogenic constriction of cerebral arteries. Controls insulin secretion in pancreatic beta-cells. May also be involved in pacemaking or could cause irregular electrical activity under conditions of Ca(2+) overload.; ENZYME REGULATION: Gating is voltage-dependent and repressed by decavanadate. Calmodulin-binding confers the Ca(2+) sensitivity. ATP is able to restore Ca(2+) sensitivity after desensitization. Phosphatidylinositol 4,5-biphosphate (PIP2)-binding strongly enhances activity, by increasing the channel's Ca(2+) sensitivity and shifting its voltage dependence of activation towards negative potentials. Activity is also enhanced by 3,5-bis(trifluoromethyl)pyrazole derivative (BTP2). SUBUNIT: Homomultimer. SUBCELLULAR LOCATION: Cell membrane; Multi-pass membrane protein. TISSUE SPECIFICITY: Widely expressed with a high expression in intestine and prostate. In brain, it is both expressed in whole cerebral arteries and isolated vascular smooth muscle cells.

Bioinformatics

Entrez	171143 Rat 54795 Human 68667 Mouse
Uniprot	NM_017636 Human Q8TD43 Human Q9ESQ5 Rat
Product By Gene ID	54795
Alternate Names	Calcium-activated non-selective cation channel 1 FLJ20041 hTRPM4 Long transient receptor potential channel 4 LTrpC4 LTRPC4 LTrpC-4 Melastatin-4 melastatin-4 PFHB1B transient receptor potential cation channel subfamily M member 4 transient receptor potential cation channel, subfamily M, member 4 TRPM4B

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