Genetic Variant CYP2C9:p.Ile359Thr (chr10-94981297-T-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 3P and 5B. PM5PP5BP4BS2

The NM_000771.4(CYP2C9):c.1076T>C(p.Ile359Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000929 in 1,613,804 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in Lovd as Likely pathogenic (no stars). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in UniProt. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I359L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

CYP2C9
NM_000771.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.64

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 made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM5

Other missense variant is known to change same aminoacid residue: Variant chr10-94981296-A-C is described in Lovd as [Pathogenic].

PP5

Variant 10-94981297-T-C is Pathogenic according to our data. Variant chr10-94981297-T-C is described in Lovd as [Likely_pathogenic].

BP4

Computational evidence support a benign effect (MetaRNN=0.2454888). . Strength limited to SUPPORTING due to the PP5.

BS2

High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CYP2C9	NM_000771.4 link	c.1076T>C	p.Ile359Thr	missense_variant	Exon 7 of 9	ENST00000260682.8	NP_000762.2	P11712-1S5RV20

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CYP2C9	ENST00000260682.8 link	c.1076T>C	p.Ile359Thr	missense_variant	Exon 7 of 9	1	NM_000771.4	ENSP00000260682.6	P11712-1
CYP2C9	ENST00000643112.1 link	n.*85T>C		non_coding_transcript_exon_variant	Exon 6 of 8			ENSP00000496202.1	A0A2R8YF67
CYP2C9	ENST00000643112.1 link	n.*85T>C		3_prime_UTR_variant	Exon 6 of 8			ENSP00000496202.1	A0A2R8YF67

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

251118

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135690

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000163

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000889

AC:

AN:

1461666

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727144

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000101

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000809

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152138

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74330

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000567

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.0000546

EpiControl

AF:

0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.41

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.31

Eigen

Benign

-0.037

Eigen_PC

Benign

-0.099

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.75

M_CAP

Benign

0.016

MetaRNN

Benign

0.25

MetaSVM

Benign

-0.57

MutationAssessor

Benign

2.0

PrimateAI

Benign

0.43

PROVEAN

Uncertain

-4.0

REVEL

Benign

0.16

Sift

Benign

0.11

Sift4G

Benign

0.18

Polyphen

0.69

Vest4

0.27

MutPred

0.19

Loss of stability (P = 9e-04);

MVP

0.80

MPC

0.051

ClinPred

0.26

GERP RS

2.6

Varity_R

0.41

gMVP

0.043

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over