Entrez Summary: This gene encodes a scaffold protein that is a component of the PIKfyve protein kinase complex. This complex is responsible for the synthesis of phosphatidylinositol 3,5-bisphosphate, an important component of cellular membranes, from phosphatidylinositol 3-phosphate. Mice lacking a functional copy of this gene exhibit severe neurodegeneration. Mutations in the human gene have been identified in patients with a childhood onset progressive neurological disorder characterized by impaired movement, dystonia, and striatal abnormalities. [provided by RefSeq, May 2017].
UniProt Summary: The PI(3,5)P2 regulatory complex regulates both the synthesis and turnover of phosphatidylinositol 3,5-bisphosphate (PtdIns(3,5)P2). Acts as a positive activator of PIKfyve kinase activity. Also required to maintain normal levels of phosphatidylinositol 3-phosphate (PtdIns(3)P) and phosphatidylinositol 5-phosphate (PtdIns(5)P). Plays a role in the biogenesis of endosome carrier vesicles (ECV) / multivesicular bodies (MVB) transport intermediates from early endosomes. {ECO:0000269|PubMed:15542851, ECO:0000269|PubMed:17556371}.
Pfam DomainsGO Terms
Pfam Domains
Vac14 Fig4 bd
Vac14 Fab1 bd
GO Terms
extrinsic component of vacuolar membrane
PAS complex
phosphatidylinositol biosynthetic process
late endosome membrane
early endosome membrane
phosphatidylinositol metabolic process
signaling receptor activity
glycerophospholipid biosynthetic process
endosome membrane
glycerolipid biosynthetic process
phospholipid biosynthetic process
glycerophospholipid metabolic process
phospholipid metabolic process
glycerolipid metabolic process
organophosphate biosynthetic process
lipid biosynthetic process
Golgi membrane
viral process
symbiotic process
interspecies interaction between organisms
organophosphate metabolic process
cellular lipid metabolic process
endoplasmic reticulum
lipid metabolic process
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)