期刊
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
卷 1838, 期 6, 页码 1536-1547出版社
ELSEVIER
DOI: 10.1016/j.bbamem.2014.01.008
关键词
C2 domain; Phosphatidylinositol-4,5-bisphosphate; Ca2+-signaling protein; Signaling domain
资金
- MINECO, Spain-FEDER [BFU2011-22828]
- Fundacion Seneca, Region de Murcia [08700/PI/08]
C2 domains are membrane-binding modules that share a common overall fold: a single compact Greek-key motif organized as an eight-stranded anti-parallel beta-sandwich consisting of a pair of four-stranded beta-sheets. A myriad of studies have demonstrated that in spite of sharing the common structural beta-sandwich core, slight variations in the residues located in the interconnecting loops confer C2 domains with functional abilities to respond to different Ca2+ concentrations and lipids, and to signal through protein-protein interactions as well. This review summarizes the main structural and functional findings on Ca2+ and lipid interactions by C2 domains, including the discovery of the phosphoinositide-binding site located in the beta 3-beta 4 strands. The wide variety of functions, together with the different Ca2+ and lipid affinities of these domains, converts this superfamily into a crucial player in many functions in the cell and more to be discovered. This Article is Part of a Special Issue Entitled: Membrane Structure and Function: Relevance in the Cell's Physiology, Pathology and Therapy. (C) 2014 Elsevier B.V. All rights reserved.
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