Structure and regulation of phospholipase Cβ and ε at the membrane.
Structure and regulation of phospholipase Cβ and ε at the membrane.
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DOI:
10.1016/j.chemphyslip.2021.105050
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发表时间:
2021-03
影响因子:
3.4
通讯作者:
Lyon AM
中科院分区:
文献类型:
--
作者:
Muralidharan K;Van Camp MM;Lyon AM
Phospholipase C (PLC) β and ε enzymes hydrolyze phosphatidylinositol (PI) lipids in response to direct interactions with heterotrimeric G protein subunits and small GTPases activated downstream of G protein-coupled receptors (GPCRs) and receptor tyrosine kinases (RTKs). PI hydrolysis generates second messengers that increase the intracellular Ca2+ concentration and activate protein kinase C (PKC), thereby regulating numerous physiological processes. PLCβ and PLCε share a highly conserved core required for lipase activity but use different strategies and structural elements to autoinhibit basal activity, bind membranes, and engage G protein activators. In this review, we discuss recent structural insights into these enzymes and the implications for how they engage membranes alone or in complex with their G protein regulators.
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