19-15650041-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000896.3(CYP4F3):​c.776C>T​(p.Ala259Val) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000014 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

CYP4F3
NM_000896.3 missense

Scores

10
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.88
Variant links:
Genes affected
CYP4F3 (HGNC:2646): (cytochrome P450 family 4 subfamily F member 3) This gene, CYP4F3, 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 protein localizes to the endoplasmic reticulum. The enzyme starts the process of inactivating and degrading leukotriene B4, a potent mediator of inflammation. This gene is part of a cluster of cytochrome P450 genes on chromosome 19. Another member of this family, CYP4F8, is approximately 18 kb away. Several transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Apr 2019]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CYP4F3NM_000896.3 linkuse as main transcriptc.776C>T p.Ala259Val missense_variant 7/13 ENST00000221307.13 NP_000887.2 Q08477-1A0A024R7J8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CYP4F3ENST00000221307.13 linkuse as main transcriptc.776C>T p.Ala259Val missense_variant 7/131 NM_000896.3 ENSP00000221307.6 Q08477-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000137
AC:
2
AN:
1461894
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 25, 2024The c.776C>T (p.A259V) alteration is located in exon 7 (coding exon 6) of the CYP4F3 gene. This alteration results from a C to T substitution at nucleotide position 776, causing the alanine (A) at amino acid position 259 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Uncertain
0.030
T
BayesDel_noAF
Benign
-0.19
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.072
.;.;T;.
Eigen
Benign
-0.17
Eigen_PC
Benign
-0.15
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.89
.;.;D;D
M_CAP
Benign
0.034
D
MetaRNN
Uncertain
0.64
D;D;D;D
MetaSVM
Benign
-0.48
T
MutationAssessor
Uncertain
2.6
M;M;M;M
PrimateAI
Benign
0.45
T
PROVEAN
Uncertain
-3.5
.;.;D;.
REVEL
Uncertain
0.41
Sift
Uncertain
0.023
.;.;D;.
Sift4G
Uncertain
0.021
D;D;D;D
Polyphen
0.11
.;.;B;.
Vest4
0.52
MutPred
0.68
Gain of MoRF binding (P = 0.0908);Gain of MoRF binding (P = 0.0908);Gain of MoRF binding (P = 0.0908);Gain of MoRF binding (P = 0.0908);
MVP
0.62
MPC
0.10
ClinPred
0.93
D
GERP RS
2.9
Varity_R
0.30
gMVP
0.41

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-15760851; API