CYP4A22

Chr 1

cytochrome P450 family 4 subfamily A member 22

This cytochrome P450 enzyme catalyzes omega- and (omega-1)-hydroxylation of fatty acids such as laurate and palmitate but shows no activity towards arachidonic acid. The gene is not highly constrained against loss-of-function variants (pLI near zero, LOEUF 1.87), and no established Mendelian disease associations have been reported in the provided data.

OMIMResearchSummary from RefSeq, UniProt
DNmechanismLOEUF 1.87
Clinical SummaryCYP4A22
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.87LOEUF
pLI 0.000
Z-score -2.21
OE 1.48 (1.131.87)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
-1.17Z-score
OE missense 1.19 (1.091.30)
352 obs / 295.5 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios
LoF OE1.48 (1.131.87)
00.351.4
Missense OE1.19 (1.091.30)
00.61.4
Synonymous OE0.98
01.21.6
LoF obs/exp: 37 / 25.1Missense obs/exp: 352 / 295.5Syn Z: 0.20
DN
0.7035th %ile
GOF
0.6052th %ile
LOF
0.3259th %ile

The highest-scoring mechanism for this gene is dominant-negative.

DNprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

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

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

CYP4A22 · 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.

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Clinical Literature
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