Transmembrane channel-like protein 1

UniProtKB accession:  Q8R4P5

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Pore-forming subunit of the mechanotransducer (MET) non-selective cation channel complex located at the tips of stereocilia of cochlear hair cells and that mediates sensory transduction in the auditory system (PubMed:11850618, PubMed:23871232, PubMed:30138589, PubMed:36191207). The MET complex is composed of two dimeric pore-forming ion-conducting transmembrane TMC (TMC1 or TMC2) subunits, several auxiliary proteins including LHFPL5, TMIE, CIB2/3 and TOMT, the tip-link PCDH15, and possibly the PIEZO subunits (PubMed:30138589, PubMed:36191207). MET channel is activated by tension in the tip-link extending from the side wall of one stereocilium to the tip of the adjacent shorter stereocilium, where the channel is located (PubMed:30138589, PubMed:36191207). TMC1 MET channel is highly permeable to calcium and likely transports monovalent cations (PubMed:23871232, PubMed:30138589, PubMed:36191207). Also involved in vestibular hair cells transduction current (PubMed:23871232).