Novel regulation of PLCζ activity via its XY-linker
نویسندگان
چکیده
منابع مشابه
Novel regulation of PLCζ activity via its XY-linker
The XY-linker region of somatic cell PLC (phospholipase)-β, -γ, -δ and -ε isoforms confers potent catalytic inhibition, suggesting a common auto-regulatory role. Surprisingly, the sperm PLCζ XY-linker does not mediate auto-inhibition. Unlike for somatic PLCs, the absence of the PLCζ XY-linker significantly diminishes both in vitro PIP2 (phosphatidylinositol 4,5-bisphosphate) hydrolysis and in v...
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Phospholipase C-zeta (PLCζ) is a strong candidate for the mammalian sperm-derived factor that triggers the Ca(2+) oscillations required for egg activation at fertilization. PLCζ lacks a PH domain, which targets PLCδ1 to the phosphatidylinositol 4,5-bisphosphate (PtdIns(4,5)P(2)) substrate in the plasma membrane. Previous studies failed to detect PLCζ in the plasma membrane, hence the means of P...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 2011
ISSN: 0264-6021,1470-8728
DOI: 10.1042/bj20110953