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GeneBe

19-15641438-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_000896.3(CYP4F3):c.23C>T(p.Ser8Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000743 in 1,614,074 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000070 ( 1 hom. )

Consequence

CYP4F3
NM_000896.3 missense

Scores

14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.22
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.039212465).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CYP4F3NM_000896.3 linkuse as main transcriptc.23C>T p.Ser8Leu missense_variant 2/13 ENST00000221307.13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CYP4F3ENST00000221307.13 linkuse as main transcriptc.23C>T p.Ser8Leu missense_variant 2/131 NM_000896.3 A1Q08477-1

Frequencies

GnomAD3 genomes
AF:
0.000118
AC:
18
AN:
152214
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000290
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000119
AC:
30
AN:
251340
Hom.:
0
AF XY:
0.000110
AC XY:
15
AN XY:
135882
show subpopulations
Gnomad AFR exome
AF:
0.000246
Gnomad AMR exome
AF:
0.0000868
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000686
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000698
AC:
102
AN:
1461860
Hom.:
1
Cov.:
32
AF XY:
0.0000743
AC XY:
54
AN XY:
727234
show subpopulations
Gnomad4 AFR exome
AF:
0.000418
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.000638
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.000118
AC:
18
AN:
152214
Hom.:
0
Cov.:
32
AF XY:
0.0000941
AC XY:
7
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.000290
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000621
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000966
Hom.:
0
Bravo
AF:
0.000147
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000140
AC:
17
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

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 GeneticsDec 15, 2022The c.23C>T (p.S8L) alteration is located in exon 2 (coding exon 1) of the CYP4F3 gene. This alteration results from a C to T substitution at nucleotide position 23, causing the serine (S) at amino acid position 8 to be replaced by a leucine (L). 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
0.085
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.40
Cadd
Benign
16
Dann
Benign
0.87
Eigen
Benign
-1.1
Eigen_PC
Benign
-0.99
FATHMM_MKL
Benign
0.11
N
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.039
T;T;T;T
MetaSVM
Benign
-0.72
T
MutationAssessor
Benign
-0.34
N;N;N;N
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.43
T
Sift4G
Benign
0.66
T;T;T;T
Polyphen
0.0070
.;.;B;.
Vest4
0.41
MVP
0.57
MPC
0.034
ClinPred
0.015
T
GERP RS
1.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.029
gMVP
0.42

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs369322623; hg19: chr19-15752248; COSMIC: COSV104543396; COSMIC: COSV104543396; API