Genetic Variant CYP2C9:p.Ser162Leu (chr10-94947782-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000771.4(CYP2C9):c.485C>T(p.Ser162Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,688 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CYP2C9
NM_000771.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.21

Publications

24 publications found

Variant links:

Genes affected

CYP2C9 (HGNC:2623): (cytochrome P450 family 2 subfamily C member 9) 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 and its expression is induced by rifampin. The enzyme is known to metabolize many xenobiotics, including phenytoin, tolbutamide, ibuprofen and S-warfarin. Studies identifying individuals who are poor metabolizers of phenytoin and tolbutamide suggest that this gene is polymorphic. The gene is located within a cluster of cytochrome P450 genes on chromosome 10q24. [provided by RefSeq, Jul 2008]

CYP2C9 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.09940377).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CYP2C9	NM_000771.4 link	c.485C>T	p.Ser162Leu	missense_variant	Exon 4 of 9	ENST00000260682.8	NP_000762.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
CYP2C9	ENST00000260682.8 link	c.485C>T	p.Ser162Leu	missense_variant	Exon 4 of 9	1	NM_000771.4	ENSP00000260682.6
CYP2C9	ENST00000473496.1 link	n.256C>T		non_coding_transcript_exon_variant	Exon 3 of 4	2
CYP2C9	ENST00000643112.1 link	n.485C>T		non_coding_transcript_exon_variant	Exon 4 of 8			ENSP00000496202.1
CYP2C9	ENST00000645207.1 link	n.638C>T		non_coding_transcript_exon_variant	Exon 3 of 3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251132

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000545

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460688

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726666

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33426

American (AMR)

AF:

0.00

AC:

AN:

44678

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26110

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39680

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86220

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5224

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111650

Other (OTH)

AF:

0.00

AC:

AN:

60290

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

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.:

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.068

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.39

CADD

Benign

8.5

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.28

Eigen

Benign

-0.88

Eigen_PC

Benign

-0.90

FATHMM_MKL

Benign

0.018

LIST_S2

Benign

0.80

M_CAP

Benign

0.0098

MetaRNN

Benign

0.099

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

PhyloP100

-2.2

PrimateAI

Benign

0.36

PROVEAN

Benign

-2.2

REVEL

Benign

0.14

Sift

Benign

0.21

Sift4G

Benign

0.24

Vest4

0.13

ClinPred

0.11

GERP RS

-0.15

Varity_R

0.16

gMVP

0.059

Mutation Taster

=99/1

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over