Genetic Variant NM_001082.5:c.1250G>A (chr19-15879668-C-T) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001082.5(CYP4F2):c.1250G>A(p.Gly417Asp) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000000684 in 1,461,876 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G417V) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CYP4F2
NM_001082.5 missense, splice_region

Scores

Splicing: ADA: 0.08340

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.21

Publications

0 publications found

Variant links:

Genes affected

CYP4F2 (HGNC:2645): (cytochrome P450 family 4 subfamily F member 2) This gene 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, CYP4F11, is approximately 16 kb away. [provided by RefSeq, Jul 2008]

CYP4F2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.941

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001082.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CYP4F2	NM_001082.5	MANE Select	c.1250G>A	p.Gly417Asp	missense splice_region	Exon 11 of 13	NP_001073.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CYP4F2	ENST00000221700.11	TSL:1 MANE Select	c.1250G>A	p.Gly417Asp	missense splice_region	Exon 11 of 13	ENSP00000221700.3	P78329-1
CYP4F2	ENST00000011989.11	TSL:1	c.1250G>A	p.Gly417Asp	missense splice_region	Exon 11 of 13	ENSP00000011989.8	A0A0A0MQR0
CYP4F2	ENST00000886782.1		c.1346G>A	p.Gly449Asp	missense splice_region	Exon 12 of 14	ENSP00000556841.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461876

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727242

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112010

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Uncertain

0.072

BayesDel_noAF

Benign

-0.13

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.29

Eigen

Uncertain

0.28

Eigen_PC

Benign

0.087

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.79

M_CAP

Benign

0.016

MetaRNN

Pathogenic

0.94

MetaSVM

Uncertain

0.22

MutationAssessor

Uncertain

2.5

PhyloP100

4.2

PrimateAI

Uncertain

0.53

PROVEAN

Pathogenic

-6.0

REVEL

Uncertain

0.62

Sift

Uncertain

0.014

Sift4G

Uncertain

0.013

Polyphen

1.0

Vest4

0.45

MutPred

0.91

Gain of relative solvent accessibility (P = 0.09)

MVP

0.87

MPC

0.59

ClinPred

0.99

GERP RS

2.8

Varity_R

0.59

gMVP

0.90

Mutation Taster

=65/35

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.083

dbscSNV1_RF

Benign

0.34

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over