19-15641603-A-T
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Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong
The NM_000896.3(CYP4F3):c.188A>T(p.His63Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000664 in 150,600 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 0.0000066 ( 0 hom., cov: 32)
Consequence
CYP4F3
NM_000896.3 missense
NM_000896.3 missense
Scores
10
4
5
Clinical Significance
Conservation
PhyloP100: 5.51
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_pathogenic. Variant got 6 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.98
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CYP4F3 | NM_000896.3 | c.188A>T | p.His63Leu | missense_variant | 2/13 | ENST00000221307.13 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CYP4F3 | ENST00000221307.13 | c.188A>T | p.His63Leu | missense_variant | 2/13 | 1 | NM_000896.3 | A1 |
Frequencies
GnomAD3 genomes AF: 0.00000664 AC: 1AN: 150600Hom.: 0 Cov.: 32
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GnomAD4 exome Cov.: 32
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GnomAD4 genome AF: 0.00000664 AC: 1AN: 150600Hom.: 0 Cov.: 32 AF XY: 0.0000136 AC XY: 1AN XY: 73500
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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 submitter | clinical testing | Ambry Genetics | Jan 26, 2022 | The c.188A>T (p.H63L) alteration is located in exon 2 (coding exon 1) of the CYP4F3 gene. This alteration results from a A to T substitution at nucleotide position 188, causing the histidine (H) at amino acid position 63 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Uncertain
DANN
Benign
DEOGEN2
Benign
.;.;T;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Benign
.;.;T;D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D;D;D
MetaSVM
Pathogenic
D
MutationAssessor
Pathogenic
M;M;M;M
MutationTaster
Benign
D;D;D;D
PrimateAI
Benign
T
PROVEAN
Pathogenic
.;.;D;.
REVEL
Pathogenic
Sift
Pathogenic
.;.;D;.
Sift4G
Pathogenic
D;D;D;D
Polyphen
1.0
.;.;D;.
Vest4
MutPred
Loss of disorder (P = 0.0584);Loss of disorder (P = 0.0584);Loss of disorder (P = 0.0584);Loss of disorder (P = 0.0584);
MVP
MPC
0.28
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at