PIK3R4
Chr 3phosphoinositide-3-kinase regulatory subunit 4
Also known as: VPS15, p150
Predicted to enable protein serine/threonine kinase activity. Involved in several processes, including early endosome to late endosome transport; phosphatidylinositol 3-kinase/protein kinase B signal transduction; and phosphatidylinositol-3-phosphate biosynthetic process. Located in ciliary basal body; intercellular bridge; and late endosome. Part of phosphatidylinositol 3-kinase complex, class III. [provided by Alliance of Genome Resources, Jul 2025]
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
More LoF-intolerant than ~75% of genes
Moderately missense-constrained (top ~2.5%)
ClinVar Variant Classifications
0 submitted variants in ClinVar
Protein Context — Lollipop Plot
PIK3R4 · protein map & ClinVar variants
Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.
External Resources
Links to major genomics databases and tools
Clinical Trials
Active and recruiting trials from ClinicalTrials.gov
No active trials found for this gene.
Search ClinicalTrials.gov →External Resources
Links to major genomics databases and tools