PPP4R2

Chr 3

protein phosphatase 4 regulatory subunit 2

Also known as: PP4R2

The protein encoded by PPP4R2 is a regulatory subunit of serine/threonine-protein phosphatase 4 that is essential for DNA double strand break repair, centrosomal microtubule organization, and spliceosomal snRNP processing. Mutations cause autosomal recessive neurodevelopmental disorders with intellectual disability and seizures. This gene is highly constrained against loss-of-function variants in the general population.

OMIMResearchSummary from RefSeq, UniProt
LOFmechanismLOEUF 0.16
Clinical SummaryPPP4R2
Population Constraint (gnomAD)
Highly constrained gene — heterozygous loss-of-function variants are very rare in the population (pLI 1.00). One damaged copy is likely sufficient to cause disease.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

LoF intolerant — likely haploinsufficient
LoF Constraint
0.16LOEUF
pLI 0.998
Z-score 4.00
OE 0.00 (0.000.16)
Highly constrained

Highly LoF-intolerant (top ~10% of genes)

Missense Constraint
0.00Z-score
OE missense 1.00 (0.891.12)
206 obs / 206.0 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.00 (0.000.16)
00.351.4
Missense OE1.00 (0.891.12)
00.61.4
Synonymous OE1.27
01.21.6
LoF obs/exp: 0 / 18.7Missense obs/exp: 206 / 206.0Syn Z: -1.81
DN
0.2599th %ile
GOF
0.2497th %ile
LOF
0.75top 10%

The highest-scoring mechanism for this gene is loss-of-function (haploinsufficiency).

LOFprediction above median · LOEUF 0.16

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312. Mechanism ranking also informed by gnomAD constraint, ClinVar, and ClinGen data.

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

PPP4R2 · protein map & ClinVar variants

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

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →
Clinical Literature
Open Research Assistant →