PI4K2A

Chr 10

phosphatidylinositol 4-kinase type 2 alpha

Membrane-bound phosphatidylinositol-4 kinase (PI4-kinase) that catalyzes the phosphorylation of phosphatidylinositol (PI) to phosphatidylinositol 4-phosphate (PI4P), a lipid that plays important roles in endocytosis, Golgi function, protein sorting and membrane trafficking and is required for prolonged survival of neurons. Besides, phosphorylation of phosphatidylinositol (PI) to phosphatidylinositol 4-phosphate (PI4P) is the first committed step in the generation of phosphatidylinositol 4,5-bisphosphate (PIP2), a precursor of the second messenger inositol 1,4,5-trisphosphate (InsP3)

ResearchGenerating clinical summary…

Primary Disease Associations & Inheritance

UniProtNeurodevelopmental disorder with hyperkinetic movements, seizures, and structural brain abnormalities

Clinical highlights

Interpreting a novel variant
This gene is strongly intolerant of loss-of-function variation in the population, so LoF variants warrant close attention. No curated mechanism annotation is available — see the mechanism card for the computational prediction and its caveats.Curated gene-level mechanism — a prior for triage, not a per-variant call.
0
Active trials
9
Pubs (1 yr)
P/LP submissions
P/LP missense
0.40
LOEUF
Mechanism
Some data sources returned errors (2)

ncbi: Error: NCBI fetch failed: 429 https://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Moderate LoF intolerance
LoF Constraint?
0.40LOEUF
pLI 0.804
Z-score 3.67
OE 0.17 (0.090.40)
Moderately constrained

More LoF-intolerant than ~75% of genes

Missense Constraint?
2.89Z-score
OE missense 0.50 (0.430.57)
129 obs / 260.2 exp
Mild constraint

Moderately missense-constrained (top ~2.5%)

Observed / Expected Ratios?
LoF OE?0.17 (0.090.40)
00.351.4
Missense OE?0.50 (0.430.57)
00.61.4
Synonymous OE?0.75
01.21.6
LoF obs/exp: 4 / 23.0Missense obs/exp: 129 / 260.2Syn Z: 1.97

ClinVar

No ClinVar data available.

Protein Context — Lollipop Plot

PI4K2A · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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