XIAP(redirected from E3 ubiquitin-protein ligase XIAP)
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XIAPA gene on chromosome Xq25 that belongs to the inhibitor of apoptosis (IAP) gene family, which encode negative regulatory proteins that prevent apoptotic cell death. XIAP acts by binding to tumour necrosis-factor receptor-associated factors TRAF1 and TRAF2, inhibits apoptosis induced by menadione—a free radical inducer and IL1-beta converting enzyme—and inhibits cell-death proteases caspase-3 and caspase-7.
XIAP mutations cause X-linked lymphoproliferative syndrome.