Transient receptor potential cation channel subfamily M member 1
UniProtKB accession: Q2TV84
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Go to UniProtKB: Q2TV84
UniProtKB description: Constitutively open nonselective divalent cation-conducting channels which mediate the influx of Ca(2+), Mg(2+), Mn(2+), Ba(2+), and Ni(2+) into the cytoplasm, leading to membrane depolarization. Impermeable to zinc ions. In addition, forms heteromultimeric ion channels with TRPM3 which are permeable for calcium and zinc ions. Plays an essential role for the depolarizing photoresponse of retinal ON bipolar cells (PubMed:19861548). In the dark, tonic release of glutamate activates the G-protein coupled receptor for glutamate (GRM6), its activation induces the release of G(o) and the beta-gamma G protein dimer. Both subunits can interact and inactivate the TRPM1 channel. A light onset, induces decrease in glutamate release and deactivation of GRM6 leading to channel opening and membrane depolarization (PubMed:19966281, PubMed:26883481). May play a role in metastasis suppression (PubMed:9537257).
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