Molecular properties of the cGMP cascade of vertebrate photoreceptors.

Molecular properties of the cGMP cascade of vertebrate photoreceptors.
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脊椎动物光感受器 cGMP 级联的分子特性。

DOI:
10.1146/annurev.ph.49.030187.004045
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发表时间:
1987
影响因子:
18.2
通讯作者:
J. Hurley
J. Hurley
中科院分区:
医学1区
文献类型:
--
作者:
J. Hurley

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脊椎动物的光感受器是分化程度最高的真核细胞之一。这些细胞在暴露于光下时迅速超极化,这种反应的速度和灵敏度通过独特的细胞结构和酶级联的进化得到了优化。光反应由独特的电和代谢变化组成,这些变化是由视紫红质光解引起的。也许是最容易理解的代谢光反应,cGMP的快速光诱导水解似乎是光转导的必要中间体。本卷的其他章节涵盖了视紫红质的分子特性(17),光感受器质膜的电学特性(75),以及光诱导代谢变化与质膜之间的耦合(79)。这篇综述详细介绍了光感受器细胞特有的几个生化过程。只有将视紫红质光解与cGMP水解结合的酶硬件将在这里详细描述。
Vertebrate photoreceptors are among the most differentiated eukaryotic cells. These cells rapidly hyperpolarize when exposed to light, and the speed and sensitivity of this response has been optimized by the evolution of a unique cellular structure and enzymatic cascade. The photoresponse is made up of unique electrical and metabolic changes that are initiated by rhodopsin photolysis. Perhaps the best understood metabolic photoresponse, a rapid light-induced hydrolysis of cGMP appears to be an essential intermediate in phototransduction. Other chapters in this volume cover the molecular properties of rhodopsin (17), the electrical properties of photoreceptor plasma membranes (75), and the coupling between the light-induced metabolic changes and the plasma membrane (79). This review details several biochemical processes that are unique to photoreceptor cells. Only the enzymatic hardware that couples rhodopsin photolysis to cGMP hydrolysis will be described in detail here.
从牛中枢神经系统中分离出的 GTP 结合蛋白家族内部的关系。
DOI: --
发表时间: 1985
期刊: The Journal of biological chemistry
影响因子: --
作者:
Roof,DJ;Applebury,ML;Sternweis,PC
通讯作者: Sternweis,PC
DOI: 10.1073/pnas.83.9.2797
发表时间: 1986-05-01
影响因子: 11.1
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BENOVIC, JL;STRASSER, RH;LEFKOWITZ, RJ
通讯作者: LEFKOWITZ, RJ
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发表时间: 1984
期刊: The Journal of biological chemistry
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DOI: --
发表时间: 1983
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转导蛋白 γ 亚基的部分 cDNA 序列。
DOI: 10.1016/0006-291x(84)90944-6
发表时间: 1984
影响因子: 3.1
作者:
VanDop,C;Medynski,D;Sullivan,K;Wu,AM;Fung,BK;Bourne,HR
通讯作者: Bourne,HR