Programmed cell death activator egl-1

UniProtKB accession:  O61667

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Plays a major role in programmed cell death (PCD or apoptosis) by negatively regulating ced-9 (PubMed:10688797, PubMed:15383288, PubMed:9604928). Binds to and directly inhibits the activity of ced-9, releasing the cell death activator ced-4 from a ced-9/ced-4 containing protein complex and allowing ced-4 to activate the cell-killing caspase ced-3 (PubMed:10688797, PubMed:15383288, PubMed:9604928). Required to activate programmed cell death in the sister cells of the serotonergic neurosecretory motor (NSM) neurons during embryogenesis (PubMed:12874127). Required to activate programmed cell death in the sister cells of the M4 motor neuron and I1 pharyngeal neuron during embryogenesis (PubMed:20713707). During larval development, required for the elimination of transient presynaptic components upstream of ced-9, ced-4 and ced-3 apoptotic pathway (PubMed:26074078). Together with ain-1, a component of the miRNA-induced-silencing complex (miRISC), and probably upstream of ced-3 and ced-4, regulates temporal cell fate patterning during larval development (PubMed:25432023). Has been shown in two studies to be dispensable in mitochondrial dynamics and morphology during early embryonic development (PubMed:19327994, PubMed:21949250). However, one study shows that during larval development, egl-1 is involved in modulating mitochondrial dynamics, perhaps acting by stabilizing the interaction between ced-9 and drp-1 in order to promote mitochondrial fission (PubMed:21949250). Involved in inducing mitochondrial fragmentation during apoptosis, probably acting via ced-9 and dynamin-related protein drp-1 (PubMed:15716954).