Function
Component of the autophagy machinery that is recruited to phosphatidylinositols on preautophagosomal structures, which are early autophagic structures, to promote autophagosome formation, and the subsequent degradation and clearance of engulfed apoptotic cells and P-granules in somatic cells (PubMed:12958363, PubMed:19167332, PubMed:21183797, PubMed:21802374, PubMed:22451698, PubMed:25124690, PubMed:28557996). In particular, binds with high affinity to phosphatidylinositols including phosphatidylinositol 3-phosphate (PtdIns(3)P), phosphatidylinositol 4-phosphate (PtdIns(4)P), and phosphatidylinositol 5-phosphate (PtdIns(5)P), and more weakly to phosphatidylinositol 3,5-bisphosphate (PtdIns(3,5)P2) (PubMed:21802374, PubMed:22451698). Plays a role in mitophagy, which is the autophagic consumption of mitochondria, in response to dietary restriction (PubMed:30133321). In a daf-18/PTEN- and daf-16/FOXO-dependent manner, required for the proliferation of germ stem cell progenitors in the gonad during the late phases of larval development (PubMed:28285998). By regulating the release of neurotransmitters and neuropeptides, involved in the control of lifespan in response to dietary restriction and daf-2 signaling (PubMed:28557996). Probably through its involvement in autophagy, required for dauer formation (PubMed:12958363).
Sequence
MSATTSEENPDSINYIGFNQDSKVICVGHKDGYMFYKTADILENNTLTYEGENLTHLGLNNCLIIERLFSSALMVVISQKDPRVLHVYHFTSRNIICDHRFNKSVLTVRLNRDRIVVCLEDCIYIYNLKDMKMMHNIMDTPTNKLGVLDLTSNPGNALIAYPGSTDTGSVHLFDAINLSSVSTFNAHEGTIACLKFNQEGNMIATASTKGTVIRVYSVPNGHRLFEFRRGVTRCVNIYSLCFSSDSKYLTSSSNTETVHVFKLEKTEGVDNKPEASTEGGGWFDAINKTFSAYMPSQVLQVGELMTTERSFATAKLPGAARSNQVSLVSHKNQQYVMAATSDGFVYAYRLDPEGGELDLIKQHNIGPKSDTSRASPTSTGSGGAAKSAEASNQSVPNMDDPDDFPPMSHTSG