chr10-94981252-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000771.4(CYP2C9):​c.1031A>T​(p.His344Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,656 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 ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CYP2C9
NM_000771.4 missense

Scores

1
1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.14
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.11458978).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CYP2C9NM_000771.4 linkuse as main transcriptc.1031A>T p.His344Leu missense_variant 7/9 ENST00000260682.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CYP2C9ENST00000260682.8 linkuse as main transcriptc.1031A>T p.His344Leu missense_variant 7/91 NM_000771.4 P1P11712-1
CYP2C9ENST00000643112.1 linkuse as main transcriptc.*40A>T 3_prime_UTR_variant, NMD_transcript_variant 6/8

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251164
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135728
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461656
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727132
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 GeneticsApr 04, 2023The c.1031A>T (p.H344L) alteration is located in exon 7 (coding exon 7) of the CYP2C9 gene. This alteration results from a A to T substitution at nucleotide position 1031, causing the histidine (H) at amino acid position 344 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
0.091
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
0.42
DANN
Benign
0.87
DEOGEN2
Benign
0.31
T
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.042
N
LIST_S2
Benign
0.43
T
M_CAP
Benign
0.0016
T
MetaRNN
Benign
0.11
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.7
L
MutationTaster
Benign
0.96
N
PrimateAI
Benign
0.24
T
PROVEAN
Pathogenic
-5.3
D
REVEL
Benign
0.032
Sift
Benign
0.062
T
Sift4G
Uncertain
0.034
D
Polyphen
0.018
B
Vest4
0.27
MutPred
0.41
Loss of catalytic residue at H344 (P = 0.0197);
MVP
0.38
MPC
0.0087
ClinPred
0.055
T
GERP RS
-3.9
Varity_R
0.23
gMVP
0.059

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.

Other links and lift over

dbSNP: rs758841491; hg19: chr10-96741009; API