19-15647244-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_000896.3(CYP4F3):​c.445C>T​(p.Arg149Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000514 in 1,614,226 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000052 ( 0 hom. )

Consequence

CYP4F3
NM_000896.3 missense

Scores

7
8
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.35
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 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.91

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CYP4F3NM_000896.3 linkuse as main transcriptc.445C>T p.Arg149Trp missense_variant 5/13 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.445C>T p.Arg149Trp missense_variant 5/131 NM_000896.3 ENSP00000221307.6 Q08477-1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152214
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000596
AC:
15
AN:
251486
Hom.:
0
AF XY:
0.0000883
AC XY:
12
AN XY:
135922
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.000173
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000615
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000520
AC:
76
AN:
1461894
Hom.:
0
Cov.:
34
AF XY:
0.0000605
AC XY:
44
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.000119
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000513
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152332
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74494
show subpopulations
Gnomad4 AFR
AF:
0.0000962
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:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000223
Hom.:
0
Bravo
AF:
0.0000453
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000412
AC:
5

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 GeneticsJul 09, 2024The c.445C>T (p.R149W) alteration is located in exon 5 (coding exon 4) of the CYP4F3 gene. This alteration results from a C to T substitution at nucleotide position 445, causing the arginine (R) at amino acid position 149 to be replaced by a tryptophan (W). 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
0.21
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Pathogenic
0.23
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.32
.;.;T;.
Eigen
Uncertain
0.30
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Pathogenic
0.99
.;.;D;D
M_CAP
Uncertain
0.25
D
MetaRNN
Pathogenic
0.91
D;D;D;D
MetaSVM
Uncertain
0.41
D
MutationAssessor
Pathogenic
4.3
H;H;H;H
PrimateAI
Benign
0.38
T
PROVEAN
Pathogenic
-6.3
.;.;D;.
REVEL
Pathogenic
0.77
Sift
Pathogenic
0.0
.;.;D;.
Sift4G
Uncertain
0.014
D;D;D;D
Polyphen
0.74
.;.;P;.
Vest4
0.63
MVP
0.84
MPC
0.12
ClinPred
0.97
D
GERP RS
3.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.90
gMVP
0.69

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.10
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: rs143175634; hg19: chr19-15758054; COSMIC: COSV99658103; COSMIC: COSV99658103; API