tmc-1 encodes a sodium-sensitive channel required for salt chemosensation in C. elegans.
tmc-1 encodes a sodium-sensitive channel required for salt chemosensation in C. elegans.
复制标题
TMC-1编码在秀丽隐杆线虫中盐化学一致所需的钠敏感通道。
DOI:
10.1038/nature11845
复制
发表时间:
2013-02-07
期刊:
影响因子:
64.8
通讯作者:
Schafer, William R.
中科院分区:
文献类型:
--
作者:
Chatzigeorgiou, Marios;Bang, Sangsu;Hwang, Sun Wook;Schafer, William R.
TMC genes encode a broadly-conserved family of multipass integral membrane proteins in animals. Human TMC1 and TMC2 are deafness genes required for hair cell mechantransduction; however, the molecular functions of these and other TMC proteins have not been determined. We show here that the C. elegans TMC-1 gene encodes a sodium sensor that functions specifically in salt taste chemosensation. TMC-1 is expressed in the ASH polymodal avoidance neurons, where it is required for salt-evoked neuronal activity and behavioural avoidance of high concentrations of NaCl. However, tmc-1 has no effect on responses to other stimuli sensed by the ASH neurons including high osmolarity and chemical repellents, indicating a specific role in salt sensation. When expressed in mammalian cell culture, TMC-1 generates a predominantly cationic conductance activated by high extracellular sodium but not by other cations or uncharged small molecules. Thus, TMC-1 is both necessary for salt sensation in vivo and sufficient to generate a sodium-sensitive channel in vitro, identifying it as a likely candidate ionotropic sensory receptor.
登录
查看更多内容
影响因子:
64.8
作者:
Suzuki, Hiroshi;Thiele, Tod R.;Faumont, Serge;Ezcurra, Marina;Lockery, Shawn R.;Schafer, William R.
通讯作者:
Schafer, William R.
影响因子:
30.8
作者:
Kurima, K;Peters, LM;Griffith, AJ
通讯作者:
Griffith, AJ
影响因子:
15.9
作者:
Kawashima, Yoshiyuki;Geleoc, Gwenaelle S. G.;Griffith, Andrew J.
通讯作者:
Griffith, Andrew J.
DOI:
10.1016/j.bbagen.2009.03.032
发表时间:
2009-08-01
影响因子:
3
作者:
Wakabayashi, Tokumitsu;Kimura, Yukihiro;Shingai, Ryuzo
通讯作者:
Shingai, Ryuzo
影响因子:
11.4
作者:
Hukema, RK;Rademakers, S;Jansen, G
通讯作者:
Jansen, G