Regulatory subunit of the PI3K complex that mediates formation of phosphatidylinositol 3-phosphate; different complex forms are believed to play a role in multiple membrane trafficking pathways: PI3KC3-C1 is involved in initiation of autophagosomes and PI3KC3-C2 in maturation of autophagosomes and endocytosis. Involved in regulation of degradative endocytic trafficking and cytokinesis, probably in the context of PI3KC3-C2 (PubMed:20643123). [UniProt]
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Protein Aliases: phosphatidylinositol 3-kinase-associated p150; Phosphoinositide 3-kinase adaptor protein; Phosphoinositide 3-kinase regulatory subunit 4; phosphoinositide-3-kinase, regulatory subunit 4; phosphoinositide-3-kinase, regulatory subunit 4, p150; PI3-Kinase p150; PI3-kinase p150 subunit; PI3-kinase regulatory subunit 4; PI3-kinase VPS15
Gene Aliases: 2210010O15Rik; C730038E05Rik; C85833; D9Ertd418e; p150; PIK3R4; VPS15