Gudlur Aparna, Hogan Patrick G
Division of Signalling and Gene Expression, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA, USA.
Adv Exp Med Biol. 2017;993:39-57. doi: 10.1007/978-3-319-57732-6_3.
This chapter focuses on the Orai proteins, Orai1-Orai3, with special emphasis on Orai1, in humans and other mammals, and on the definitive evidence that Orai is the pore subunit of the CRAC channel. It begins by reviewing briefly the defining characteristics of the CRAC channel, then discusses the studies that implicated Orai as part of the store-operated Ca entry pathway and as the CRAC channel pore subunit, and finally examines ongoing work that is providing insights into CRAC channel structure and gating.
本章重点关注人类和其他哺乳动物中的Orai蛋白(Orai1 - Orai3),尤其着重于Orai1,并阐述了关于Orai是CRAC通道孔道亚基的确凿证据。本章首先简要回顾CRAC通道的定义特征,接着讨论使Orai作为储存操纵性钙内流途径的一部分以及作为CRAC通道孔道亚基的相关研究,最后审视正在进行的为深入了解CRAC通道结构和门控机制提供见解的工作。