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Details on Person UniProt:Q8TDI7-3 TMC2

Class:IdReferenceIsoform:251845
_chainChangeLogchain:1-906 added on Sat February 7 2015
_displayNameUniProt:Q8TDI7-3 TMC2
_timestamp2024-11-03 20:12:26
chainchain:1-906
checksum0EB7A3E35C870E2A
commentFUNCTION 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). The MET complex is composed of two dimeric pore-forming ion-conducting transmembrane TMC (TMC1 or TMC2) subunits, and aided by several auxiliary proteins including LHFPL5, TMIE, CIB2/3 and TOMT, and the tip-link PCDH15. 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 (By similarity). TMC2 MET channel is highly permeable to calcium and likely transports monovalent cations. Also involved in vestibular hair cell transduction current of the mammalian inner ear (By similarity).CATALYTIC ACTIVITY Ca(2+)(in) = Ca(2+)(out)SUBUNIT Forms the MET channel composed of TMC dimer (TMC1 or TMC2), TMIE, TOMT, CIB (CIB2 or CIB3), LHFPL5 and PDH15. The interaction of TMC1 and TMC2 with TOMT is required for the transportation of TMC1/2 into the stereocilia of hair cells. Interacts (via N-terminus) with both isoforms CD1 and CD3 of PCDH15. Can form a heterodimer with TMC1, TMC5 or TMC7.SUBCELLULAR LOCATION Localized to the stereocilia tips of the cochlear hair cells and plasma membranes of cuticular plates.ALTERNATIVE PRODUCTS Detected in fetal cochlea.SIMILARITY Belongs to the TMC family.SEQUENCE CAUTION Truncated N-terminus.SEQUENCE CAUTION Truncated N-terminus.
created[InstanceEdit:217385] Schmidt, EE, 2008-03-27 06:23:53
descriptionrecommendedName: Transmembrane channel-like protein 2 alternativeName: Transmembrane cochlear-expressed protein 2
geneNameTMC2
C20orf145
UNQ907/PRO1928
identifierQ8TDI7
isoformParent
isSequenceChangedFALSE
keywordAlternative splicing
Cell membrane
Ion channel
Ion transport
Membrane
Reference proteome
Transmembrane
Transmembrane helix
Transport
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
nameTMC2
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:9002695] ENSEMBL:ENSG00000149488 TMC2 [Homo sapiens]
secondaryIdentifierTMC2_HUMAN
Q5JXT0
Q5JXT1
Q6UWW4
Q6ZS41
Q8N9F3
Q9BYN2
Q9BYN3
Q9BYN4
Q9BYN5
sequenceLength906
species[Species:48887] Homo sapiens
variantIdentifierQ8TDI7-3
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