Birnbaumer Lutz
Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, NC 27709, USA.
Biochim Biophys Acta. 2007 Apr;1768(4):756-71. doi: 10.1016/j.bbamem.2006.09.027. Epub 2006 Oct 4.
The realization that there existed a G-protein coupled signal transduction mechanism developed gradually and was initially the result of an ill fated quest for uncovering the mechanism of action of insulin, followed by a refocused research in many laboratories, including mine, on how GTP acted to increase hormonal stimulation of adenylyl cyclase. Independent research into how light-activated rhodopsin triggers a response in photoreceptor cells of the retina and the attendant biochemical studies joined midway and, without the left hand knowing well what the right hand was doing, preceded classical G protein research in identifying the molecular players responsible for signal transduction by G proteins.
人们逐渐认识到存在一种G蛋白偶联信号转导机制,最初这是对胰岛素作用机制进行探索时遭遇挫折的结果,随后包括我所在实验室在内的许多实验室将研究重点重新聚焦于GTP如何作用以增强激素对腺苷酸环化酶的刺激。关于光激活视紫红质如何在视网膜光感受器细胞中引发反应的独立研究以及相关生化研究中途加入进来,而且在左手不太清楚右手在做什么的情况下,在确定负责G蛋白信号转导的分子参与者方面先于经典G蛋白研究。