Ichthyosis and erythrokeratoderma

Gene: CYP4F22

Green List (high evidence)

CYP4F22 (cytochrome P450 family 4 subfamily F member 22)
EnsemblGeneIds (GRCh38): ENSG00000171954
EnsemblGeneIds (GRCh37): ENSG00000171954
OMIM: 611495, Gene2Phenotype
CYP4F22 is in 6 panels

2 reviews

Sarah Leigh (Genomics England Curator)

Comment when marking as ready: Associated with phenotype in OMIM, not G2P. Found in 3/4 sources. One reviewer recommends Green. Numerous variants reported.
Created: 8 Jun 2016, 8:32 a.m.

John McGrath (King's College London)

Green List (high evidence)

Most cases can be explained by 6 genes, indeed nearly 80% have mutations in these genes which clearly have type 3 supportive evidence. Based on studies of >500 patients the breakdown is usually as follows: TGM1 (32%), NIPAL4 (16%), ALOX12B (12%), CYP4F22 (8%), ABCA12 (5%), ALOXE3 (5%) . which leaves 22% split among some of the others or unknown.
Created: 18 Nov 2015, 2:50 p.m.

Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal

ARCI 5; Ichthyosis, congenital, autosomal recessive 5


Mode of Inheritance
BIALLELIC, autosomal or pseudoautosomal
  • Ichthyosis, congenital, autosomal recessive 5, 604777
Clinvar variants
Variants in CYP4F22
Panels with this gene

History Filter Activity

3 Jan 2019, Gel status: 4

Created, Added New Source, Set mode of inheritance, Set Phenotypes

Ellen McDonagh (Genomics England Curator)

gene: CYP4F22 was added gene: CYP4F22 was added to Ichthyosis and erythrokeratoderma. Sources: Expert Review Green Mode of inheritance for gene: CYP4F22 was set to BIALLELIC, autosomal or pseudoautosomal Phenotypes for gene: CYP4F22 were set to Ichthyosis, congenital, autosomal recessive 5, 604777