rs119103282

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The ENST00000378802.5(CYP4V2):​c.130T>A​(p.Trp44Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000118 in 1,588,290 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

CYP4V2
ENST00000378802.5 missense

Scores

5
4
10

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts P:2U:2

Conservation

PhyloP100: 6.02
Variant links:
Genes affected
CYP4V2 (HGNC:23198): (cytochrome P450 family 4 subfamily V member 2) This gene encodes a member of the cytochrome P450 hemethiolate protein superfamily which are involved in oxidizing various substrates in the metabolic pathway. It is implicated in the metabolism of fatty acid precursors into n-3 polyunsaturated fatty acids. Mutations in this gene result in Bietti crystalline corneoretinal dystrophy. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.807

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CYP4V2NM_207352.4 linkuse as main transcriptc.130T>A p.Trp44Arg missense_variant 1/11 ENST00000378802.5 NP_997235.3
CYP4V2XM_005262935.5 linkuse as main transcriptc.130T>A p.Trp44Arg missense_variant 1/11 XP_005262992.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CYP4V2ENST00000378802.5 linkuse as main transcriptc.130T>A p.Trp44Arg missense_variant 1/111 NM_207352.4 ENSP00000368079 P1Q6ZWL3-1

Frequencies

GnomAD3 genomes
AF:
0.000224
AC:
34
AN:
152040
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00151
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:
0.000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000234
AC:
47
AN:
200594
Hom.:
0
AF XY:
0.000219
AC XY:
24
AN XY:
109630
show subpopulations
Gnomad AFR exome
AF:
0.0000832
Gnomad AMR exome
AF:
0.000811
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000763
Gnomad NFE exome
AF:
0.000216
Gnomad OTH exome
AF:
0.000193
GnomAD4 exome
AF:
0.000107
AC:
154
AN:
1436132
Hom.:
0
Cov.:
32
AF XY:
0.000109
AC XY:
78
AN XY:
712826
show subpopulations
Gnomad4 AFR exome
AF:
0.0000302
Gnomad4 AMR exome
AF:
0.000713
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000120
Gnomad4 FIN exome
AF:
0.0000220
Gnomad4 NFE exome
AF:
0.000104
Gnomad4 OTH exome
AF:
0.000101
GnomAD4 genome
AF:
0.000223
AC:
34
AN:
152158
Hom.:
0
Cov.:
33
AF XY:
0.000242
AC XY:
18
AN XY:
74412
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00150
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000127
Hom.:
0
Bravo
AF:
0.000276
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000117
AC:
1
ExAC
AF:
0.0000755
AC:
9

ClinVar

Significance: Uncertain significance
Submissions summary: Pathogenic:2Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Bietti crystalline corneoretinal dystrophy Pathogenic:2
Pathogenic, no assertion criteria providedliterature onlyOMIMMay 01, 2004- -
Pathogenic, no assertion criteria providedcurationGeneReviewsApr 12, 2012- -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 11, 2023This sequence change replaces tryptophan, which is neutral and slightly polar, with arginine, which is basic and polar, at codon 44 of the CYP4V2 protein (p.Trp44Arg). This variant is present in population databases (rs119103282, gnomAD 0.08%). This missense change has been observed in individual(s) with Bietti crystalline corneoretinal dystrophy (PMID: 15042513, 28051075). ClinVar contains an entry for this variant (Variation ID: 2187). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on CYP4V2 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Retinal dystrophy Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInstitute of Human Genetics, Univ. Regensburg, Univ. RegensburgJan 01, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.71
BayesDel_addAF
Uncertain
0.074
D
BayesDel_noAF
Pathogenic
0.25
CADD
Uncertain
24
DANN
Benign
0.87
DEOGEN2
Benign
0.36
T
Eigen
Benign
-0.35
Eigen_PC
Benign
-0.33
FATHMM_MKL
Benign
0.72
D
LIST_S2
Benign
0.59
T
M_CAP
Pathogenic
0.42
D
MetaRNN
Pathogenic
0.81
D
MetaSVM
Benign
-0.71
T
MutationAssessor
Uncertain
2.3
M
MutationTaster
Benign
1.0
A
PrimateAI
Uncertain
0.66
T
PROVEAN
Pathogenic
-5.3
D
REVEL
Uncertain
0.44
Sift
Benign
0.51
T
Sift4G
Benign
0.41
T
Polyphen
0.0020
B
Vest4
0.95
MutPred
0.79
Gain of disorder (P = 0.0016);
MVP
0.81
MPC
0.13
ClinPred
0.36
T
GERP RS
3.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.62
gMVP
0.86

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: rs119103282; hg19: chr4-187113107; API