Transduction and adaptation in sensory receptor cells
Transduction and adaptation in sensory receptor cells
复制标题
感觉受体细胞的转导和适应
DOI:
10.1523/jneurosci.15-12-07757.1995
复制
发表时间:
1995
影响因子:
0.6
通讯作者:
Anna Menini
中科院分区:
文献类型:
--
作者:
Vincent Torre;Jonathan Ashmore;T. Lamb;Anna Menini
Sensory transduction shares common features in widely different sensory modalities. The purpose of this article is to examine the similarities and differences in the underlying mechanisms of transduction in the sensory receptor cells for vision, olfaction, and hearing. One of the major differences between the systems relates to the nature of the stimulus. In both the visual and olfactory systems a quantal mechanism of detection is possible, because the absorption of a photon or the binding of an odorant molecule provides an energy change significantly greater than the thermal noise in the receptor molecule. In hearing, on the other hand, the energy of a phonon is far lower, and detection occurs by a “classical” mechanism. For vertebrate photoreceptors and olfactory receptor cells, sensory transduction employs a G protein cascade that is remarkably similar in the two cases, and that is closely homologous to other G protein signaling cascades. For auditory and vestibular hair cells, transduction operates via a mechanism of direct coupling of the stimulus to ion channels, in a manner reminiscent of the direct gating of post-synaptic ion channels in various synaptic mechanisms. The three classes of sensory receptor cell share similarities in their mechanisms of adaptation, and it appears in each case that cytoplasmic calcium concentration plays a major role in adaptation.
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DOI:
--
发表时间:
1991
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Stryer,L
通讯作者:
Stryer,L
影响因子:
5.5
作者:
FIRESTEIN, S;SHEPHERD, GM;WERBLIN, FS
通讯作者:
WERBLIN, FS
影响因子:
5.5
作者:
LAMB, TD;PUGH, EN
通讯作者:
PUGH, EN
DOI:
10.1073/pnas.83.18.7109
发表时间:
1986
影响因子:
11.1
作者:
Torre,V;Matthews,HR;Lamb,TD
通讯作者:
Lamb,TD