Thermosensory and nonthermosensory isoforms of Drosophila melanogaster TRPA1 reveal heat-sensor domains of a thermoTRP Channel.
Thermosensory and nonthermosensory isoforms of Drosophila melanogaster TRPA1 reveal heat-sensor domains of a thermoTRP Channel.
复制标题
DOI:
10.1016/j.celrep.2011.11.002
复制
发表时间:
2012-01-26
期刊:
影响因子:
8.8
通讯作者:
Tracey WD
中科院分区:
文献类型:
--
作者:
Zhong L;Bellemer A;Yan H;Ken H;Jessica R;Hwang RY;Pitt GS;Tracey WD
Specialized somatosensory neurons detect temperatures ranging from pleasantly cool or warm to burning hot and painful (nociceptive). The precise temperature ranges sensed by thermally sensitive neurons is determined by tissue specific expression of ion channels of the Transient Receptor Potential (TRP) family. We show here, that in Drosophila, TRPA1 is required for sensing of nociceptive heat. We identify two new protein isoforms of dTRPA1named dTRPA1-C and dTRPA1-D that explain this requirement. A dTRPA1-C/D reporter was exclusively expressed in nociceptors and dTRPA1-C rescued thermal nociception phenotypes when restored to mutant nociceptors. However, surprisingly, we find that dTRPA1-C is not a direct heat sensor. Alternative splicing generates at least four isoforms of dTRPA1. Our analysis of these isoforms reveals a 37 amino acid intracellular region (encoded by a single exon) that is critical for dTRPA1 temperature responses. The identification of these amino acids opens the door to a biophysical understanding of a molecular thermosensor.
登录
查看更多内容
影响因子:
5.3
作者:
Vlachová, V;Teisinger, J;Vyklicky, L
通讯作者:
Vyklicky, L
影响因子:
56.9
作者:
Venken, Koen J. T.;He, Yuchun;Bellen, Hugo J.
通讯作者:
Bellen, Hugo J.
影响因子:
16.2
作者:
Kwan, KY;Allchorne, AJ;Corey, DP
通讯作者:
Corey, DP
DOI:
10.1007/bf00215114
发表时间:
1994-08-01
期刊:
JOURNAL OF COMPARATIVE PHYSIOLOGY A-SENSORY NEURAL AND BEHAVIORAL PHYSIOLOGY
影响因子:
--
作者:
STEWART, BA;ATWOOD, HL;WU, CF
通讯作者:
WU, CF
影响因子:
25
作者:
Grandl, Joerg;Hu, Hongzhen;Bandell, Michael;Bursulaya, Badry;Schmidt, Manuela;Petrus, Matt;Patapoutian, Ardem
通讯作者:
Patapoutian, Ardem