rs9332131

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP6_Very_StrongBS2

The NM_000771.4(CYP2C9):​c.818delA​(p.Lys273ArgfsTer34) variant causes a frameshift, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000648 in 1,608,842 control chromosomes in the GnomAD database, including 5 homozygotes. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign,drug response,other (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0031 ( 3 hom., cov: 32)
Exomes 𝑓: 0.00039 ( 2 hom. )

Consequence

CYP2C9
NM_000771.4 frameshift, splice_region

Scores

Not classified

Clinical Significance

Benign/Likely benign; drug response; other criteria provided, multiple submitters, no conflicts B:2O:4

Conservation

PhyloP100: -1.21

Publications

100 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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP6
Variant 10-94949281-GA-G is Benign according to our data. Variant chr10-94949281-GA-G is described in ClinVar as Benign/Likely_benign|drug_response|other. ClinVar VariationId is 285601.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 472 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CYP2C9NM_000771.4 linkc.818delA p.Lys273ArgfsTer34 frameshift_variant, splice_region_variant Exon 5 of 9 ENST00000260682.8 NP_000762.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CYP2C9ENST00000260682.8 linkc.818delA p.Lys273ArgfsTer34 frameshift_variant, splice_region_variant Exon 5 of 9 1 NM_000771.4 ENSP00000260682.6
CYP2C9ENST00000473496.1 linkn.589delA non_coding_transcript_exon_variant Exon 4 of 4 2
CYP2C9ENST00000643112.1 linkn.818delA splice_region_variant, non_coding_transcript_exon_variant Exon 5 of 8 ENSP00000496202.1

Frequencies

GnomAD3 genomes
AF:
0.00310
AC:
472
AN:
152112
Hom.:
3
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0108
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00105
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:
0.0000882
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000757
AC:
189
AN:
249618
AF XY:
0.000541
show subpopulations
Gnomad AFR exome
AF:
0.0106
Gnomad AMR exome
AF:
0.000264
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000884
Gnomad OTH exome
AF:
0.00132
GnomAD4 exome
AF:
0.000392
AC:
571
AN:
1456612
Hom.:
2
Cov.:
29
AF XY:
0.000342
AC XY:
248
AN XY:
724694
show subpopulations
African (AFR)
AF:
0.0126
AC:
420
AN:
33280
American (AMR)
AF:
0.000496
AC:
22
AN:
44392
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26006
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39382
South Asian (SAS)
AF:
0.0000117
AC:
1
AN:
85626
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53314
Middle Eastern (MID)
AF:
0.000371
AC:
2
AN:
5396
European-Non Finnish (NFE)
AF:
0.0000793
AC:
88
AN:
1109076
Other (OTH)
AF:
0.000632
AC:
38
AN:
60140
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
27
55
82
110
137
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20
40
60
80
100
<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
AF:
0.00310
AC:
472
AN:
152230
Hom.:
3
Cov.:
32
AF XY:
0.00312
AC XY:
232
AN XY:
74410
show subpopulations
African (AFR)
AF:
0.0108
AC:
449
AN:
41564
American (AMR)
AF:
0.00105
AC:
16
AN:
15264
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68016
Other (OTH)
AF:
0.000473
AC:
1
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
26
51
77
102
128
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000384
Hom.:
0
Bravo
AF:
0.00375
Asia WGS
AF:
0.000578
AC:
2
AN:
3474

ClinVar

Significance: Benign/Likely benign; drug response; other
Submissions summary: Benign:2Other:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2Other:1
Dec 28, 2015
Eurofins Ntd Llc (ga)
Significance:other
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- Variant classified as "other reportable" ??? variant is clinically benign (not associated with disease) but is reported when observed (e.g. pseudodeficiency alleles).

Aug 06, 2018
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 14, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Piroxicam response Other:1
Feb 11, 2019
Medical Genetics Summaries
Significance:drug response
Review Status:criteria provided, single submitter
Collection Method:curation

Individuals with 2 decreased function alleles (CYP2C9 poor metabolizers) have reduced clearance of piroxicam. Because the standard recommended dose of piroxicam may cause abnormally high plasma levels, a dose reduction should be considered for these individuals. Poor metabolizer

Lesinurad response Other:1
Feb 11, 2019
Medical Genetics Summaries
Significance:drug response
Review Status:criteria provided, single submitter
Collection Method:curation

Lesinurad should be used with caution in individuals with 2 decreased function alleles (CYP2C9 poor metabolizers) because of increased exposure and an increased risk of side effects. Poor metabolizer

Flurbiprofen response Other:1
Feb 11, 2019
Medical Genetics Summaries
Significance:drug response
Review Status:criteria provided, single submitter
Collection Method:curation

The dose of flurbiprofen should be reduced in individuals with 2 decreased function alleles (CYP2C9 poor metabolizers) to avoid abnormally high plasma levels due to reduced metabolic clearance. Poor metabolizer

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
PhyloP100
-1.2
Mutation Taster
=29/171
disease causing (fs/PTC)

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

Other links and lift over

dbSNP: rs9332131; hg19: chr10-96709038; API