Transmembrane channel-like protein 1 is a protein that in humans is encoded by the TMC1gene.[5][6][7] TMC1 contains six transmembrane domains with both the C and N termini on the endoplasmic side of the membrane, as well as a large loop between domains 4 and 5. This topology is similar to that of transient receptor potential channels (TRPs),[5] a family of proteins involved in the perception of senses such as temperature, taste, pressure, and vision.[8] TMC1 has been located in the post-natal mouse cochlea,[5] and knockouts for TMC1 and TMC2 result in both auditory and vestibular deficits (hearing loss and balance issues) indicating TMC1 is a molecular part of auditory transduction.[9]