视蛋白 目录 视蛋白分类 原核视蛋白（第一类） 动物视蛋白（第二类） 外部链接 参考文献 导航菜单改善这篇條目Evolution of opsins and phototransductionISSN 0962-8436PMID 19720651doi:10.1098/rstb.2009.0051IllustrationOpsinCasting a genetic light on the evolution of eyesISSN 1095-9203PMID 17008522doi:10.1126/science.1127889编
胞外神經肽生长因子细胞因子激素細胞表面受體Template:Cell surface receptors配体门控离子通道酶联受體G蛋白偶聯受體免疫球蛋白超家族Template:Immunoglobulin superfamily immune receptors整合素神經肽受體生長因子受體细胞因子受體胞內受體蛋白Template:Signal transducing adaptor proteinsGTP-bindingTemplate:GTP-binding protein regulatorsMAP激酶鈣信號脂質系號hedgehogWntTGF-βMAPK ERKTemplate:MAPK ERK signaling pathwaynotchTemplate:Notch signaling pathwayJAK-STAT細胞凋亡hippoTemplate:Hippo signaling pathwayTLR
G蛋白偶联受体視覺
视网膜感光细胞千道尔顿G蛋白偶联受体retinylidene protein视觉光子昼夜节律趋同进化
视蛋白
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 | 此條目需要擴充。 (2014年12月29日) |
牛视紫红质的三维结构图，七个跨膜结构域显示为不同颜色，其中部的發色團显示为红色
视蛋白（英语：Opsins）是一类在视网膜感光细胞上发现的35–55千道尔顿的跨膜G蛋白偶联受体，具有感光作用，是retinylidene protein家族的一员。共有五类经典的视蛋白与视觉有关，参与光线光子到电化学信号的转化，从而开始视觉信号的转导通路。有些在哺乳动物视网膜上的视蛋白，如黑视蛋白，參與了昼夜节律调解及瞳孔对光反射作用，但與视觉成像無關。
目录
1 视蛋白分类
2 原核视蛋白（第一类）
3 动物视蛋白（第二类）
4 外部链接
5 参考文献
视蛋白分类
有两大类蛋白质都称为视蛋白：这两类之间并非同源，但趋同进化出了相似的结构和功能[1]。
原核视蛋白（第一类）
动物视蛋白（第二类）
外部链接
- Review of opsins and current research: Shichida, Yoshinori; Matsuyama, Take. Evolution of opsins and phototransduction. Philosophical Transactions of the Royal Society of London B: Biological Sciences. 2009-10-12, 364 (1531): 2881–2895. ISSN 0962-8436. PMID 19720651. doi:10.1098/rstb.2009.0051 （英语）.
Illustration at Baldwin-Wallace College
MeSH（醫學主題詞）上面的Opsin（美式英语）
参考文献
^ Fernald, Russell D. Casting a genetic light on the evolution of eyes. Science (New York, N.Y.). 2006-09-29, 313 (5795): 1914–1918. ISSN 1095-9203. PMID 17008522. doi:10.1126/science.1127889.
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