19-15544227-C-T

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_173483.4(CYP4F22):​c.1084C>T​(p.Arg362*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000806 in 1,613,830 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

CYP4F22
NM_173483.4 stop_gained

Scores

2
4
1

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 1.22
Variant links:
Genes affected
CYP4F22 (HGNC:26820): (cytochrome P450 family 4 subfamily F member 22) This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This gene is part of a cluster of cytochrome P450 genes on chromosome 19 and encodes an enzyme thought to play a role in the 12(R)-lipoxygenase pathway. Mutations in this gene are the cause of ichthyosis lamellar type 3. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 19-15544227-C-T is Pathogenic according to our data. Variant chr19-15544227-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 379536.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CYP4F22NM_173483.4 linkc.1084C>T p.Arg362* stop_gained 10/14 ENST00000269703.8 NP_775754.2 Q6NT55
CYP4F22XM_011527692.3 linkc.1084C>T p.Arg362* stop_gained 11/15 XP_011525994.1 Q6NT55
CYP4F22XM_011527693.3 linkc.1084C>T p.Arg362* stop_gained 10/14 XP_011525995.1 Q6NT55

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CYP4F22ENST00000269703.8 linkc.1084C>T p.Arg362* stop_gained 10/142 NM_173483.4 ENSP00000269703.1 Q6NT55
CYP4F22ENST00000601005.2 linkc.1084C>T p.Arg362* stop_gained 8/125 ENSP00000469866.1 Q6NT55

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151958
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
251338
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135826
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000821
AC:
12
AN:
1461872
Hom.:
0
Cov.:
33
AF XY:
0.0000138
AC XY:
10
AN XY:
727238
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.00000809
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151958
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74202
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Autosomal recessive congenital ichthyosis 5 Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingInstitute for Human Genetics, University Medical Center FreiburgApr 23, 2018- -
not provided Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingGeneDxApr 29, 2015The R362X variant in the CYP4F22 gene has not been reported previously as a pathogenic variant and it was also not observed in approximately 6,500 individuals of European and African Americanancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in thesepopulations. This variant is predicted to cause loss of normal protein function either through proteintruncation or nonsense-mediated mRNA decay. Therefore, we interpret R362X as a pathogenic variant. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.54
D
BayesDel_noAF
Pathogenic
0.58
CADD
Pathogenic
39
DANN
Uncertain
1.0
Eigen
Uncertain
0.62
Eigen_PC
Uncertain
0.46
FATHMM_MKL
Uncertain
0.94
D
Vest4
0.42
GERP RS
4.2

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs745368359; hg19: chr19-15655038; API