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CYP4F22

Chr 19p13.12

cytochrome P450 family 4 subfamily F member 22

Aliases:
FLJ39501
MANE:
ENST00000269703.8

Annotations refreshed 10 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Autosomal recessive congenital ichthyosis

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Ichthyosis and erythrokeratoderma

    BIALLELIC, autosomal or pseudoautosomal
  • Palmoplantar keratodermas

    BIALLELIC, autosomal or pseudoautosomal
  • Ectodermal dysplasia

    BIALLELIC, autosomal or pseudoautosomal
  • Familial cicatricial alopecia

    BIALLELIC, autosomal or pseudoautosomal

Disease associations (Open Targets)

  • lamellar ichthyosis

    0.74
  • autosomal recessive congenital ichthyosis

    0.39
  • placenta praevia

    0.26
  • hereditary disease

    0.19
  • ichthyosis

    0.16
  • atopic eczema

    0.15
  • bladder exstrophy

    0.12
  • erythrokeratodermia variabilis

    0.06
  • congenital non-bullous ichthyosiform erythroderma

    0.06
  • Dowling-Degos disease

    0.06

Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.

Protein function (UniProt)

Ultra-long-chain fatty acid omega-hydroxylase

A cytochrome P450 monooxygenase involved in epidermal ceramide biosynthesis. Hydroxylates the terminal carbon (omega-hydroxylation) of ultra-long-chain fatty acyls (C28-C36) prior to ceramide synthesis (PubMed:26056268). Contributes to the synthesis of three classes of omega-hydroxy-ultra-long chain fatty acylceramides having sphingosine, 6-hydroxysphingosine and phytosphingosine bases, all major lipid components that underlie the permeability barrier of the stratum corneum (PubMed:26056268). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (CPR; NADPH-ferrihemoprotein reductase) (PubMed:26056268)

Data sources: HGNC (CC BY 4.0), AlphaFold (CC BY 4.0, Jumper et al. Nature 2021), Genomics England PanelApp (CC BY 4.0), ClinGen, Open Targets (CC0), UniProt.

Not for sole clinical decision-making. Always verify against primary sources.