▁ ▁Category : Com pos itions ▁by ▁Charlotte ▁B ray ▁Category : 2 0 1 0 ▁compos itions ▁Category : V i olin ▁concert os ▁Category : Ch am ber ▁music ▁compos itions <0x0A> </s> ▁Trans ient ▁re ceptor ▁potential ▁c ation ▁channel , ▁sub family ▁A , ▁member ▁ 1 , ▁also ▁known ▁as ▁trans ient ▁re ceptor ▁potential ▁an ky rin ▁ 1 ▁or ▁TR PA 1 , ▁is ▁a ▁protein ▁that ▁in ▁humans ▁is ▁encoded ▁by ▁the ▁TR PA 1 ▁( and ▁in ▁m ouses ▁and ▁r ats ▁by ▁the ▁Tr pa 1 ) ▁gene . ▁ ▁TR PA 1 ▁is ▁an ▁ion ▁channel ▁located ▁on ▁the ▁pl asma ▁memb rane ▁of ▁many ▁human ▁and ▁animal ▁cells . ▁This ▁ion ▁channel ▁is ▁best ▁known ▁as ▁a ▁sensor ▁for ▁environmental ▁ir rit ants ▁giving ▁rise ▁to ▁som atos ens ory ▁modal ities , ▁such ▁as ▁pain , ▁cold ▁and ▁it ch , ▁and ▁other ▁protect ive ▁responses ▁( te ars , ▁air way ▁resistance , ▁c ough ... ). ▁ ▁Function ▁▁ ▁TR PA 1 ▁is ▁a ▁member ▁of ▁the ▁trans ient ▁re ceptor ▁potential ▁channel ▁family . ▁TR PA 1 ▁contains ▁ 1 4 ▁N - term inal ▁an ky rin ▁repe ats ▁and ▁is ▁believed ▁to ▁function ▁as ▁a ▁mechanical ▁and ▁chemical ▁stress ▁sensor . ▁The ▁specific ▁function ▁of ▁this ▁protein ▁has ▁not ▁yet ▁been ▁determined ; ▁however , ▁studies ▁indicate ▁that ▁the ▁function ▁may ▁involve ▁a ▁role ▁in ▁som atos ens ory ▁neur on ▁medi ated ▁protect ive