PNPLA6

Chr 19AR

patatin like domain 6, lysophospholipase

Phospholipase B that deacylates intracellular phosphatidylcholine (PtdCho), generating glycerophosphocholine (GroPtdCho). This deacylation occurs at both sn-2 and sn-1 positions of PtdCho. Catalyzes the hydrolysis of several naturally occurring membrane-associated lipids (PubMed:11927584). Hydrolyzes lysophospholipids and monoacylglycerols, preferring the 1-acyl to the 2-acyl isomer. Does not catalyze hydrolysis of di- or triacylglycerols or fatty acid amides (PubMed:11927584)

OMIMResearchGenerating clinical summary…
LOFmechanismARLOEUF 0.644 OMIM phenotypes
Clinical SummaryPNPLA6
🧬
Gene-Disease Validity (ClinGen)
retinal dystrophy-ataxia-pituitary hormone abnormality-hypogonadism syndrome · ARDefinitive

Definitive — sufficient evidence for diagnostic panels

2 total gene-disease associations curated

Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
Some data sources returned errors (1)

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

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Missense constrained — critical functional residues
LoF Constraint?
0.64LOEUF
pLI 0.000
Z-score 4.00
OE 0.48 (0.360.64)
Tolerant

Typical tolerance to LoF variation

Missense Constraint?
4.35Z-score
OE missense 0.59 (0.550.64)
529 obs / 895.8 exp
Constrained

Highly missense-constrained (top ~0.1%)

Observed / Expected Ratios?
LoF OE?0.48 (0.360.64)
00.351.4
Missense OE?0.59 (0.550.64)
00.61.4
Synonymous OE?1.01
01.21.6
LoF obs/exp: 33 / 68.8Missense obs/exp: 529 / 895.8Syn Z: -0.15
Curated Mechanism (G2P)Gene2Phenotype (DDG2P) ↗
definitivePNPLA6-related retinal dystrophy-ataxia-pituitary hormone abnormality-hypogonadism syndromeLOFAR

This gene — mechanism propensity

Predictions shown for reference only — model trained on dominant genes, not applicable to AR conditions.

DN
0.7034th %ile
GOF
0.75top 25%
LOF
0.3356th %ile

The Badonyi & Marsh prediction model was trained exclusively on dominant disease genes. Predictions are not reliable for genes with autosomal recessive inheritance and are shown at reduced opacity for reference only.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

PNPLA6 · 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.

Search ClinicalTrials.gov →