chr10-94775367-A-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_000769.4(CYP2C19):​c.332-23A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.165 in 1,612,890 control chromosomes in the GnomAD database, including 24,492 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as drug response (★★★★). There are indicators that this mutation may affect the branch point..

Frequency

Genomes: 𝑓 0.17 ( 2548 hom., cov: 32)
Exomes 𝑓: 0.16 ( 21944 hom. )

Consequence

CYP2C19
NM_000769.4 intron

Scores

2

Clinical Significance

drug response practice guideline O:1

Conservation

PhyloP100: 1.34
Variant links:
Genes affected
CYP2C19 (HGNC:2621): (cytochrome P450 family 2 subfamily C member 19) 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 is known to metabolize many xenobiotics, including the anticonvulsive drug mephenytoin, omeprazole, diazepam and some barbiturates. Polymorphism within this gene is associated with variable ability to metabolize mephenytoin, known as the poor metabolizer and extensive metabolizer phenotypes. The gene is located within a cluster of cytochrome P450 genes on chromosome 10q24. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
This place is a probable branch point but rather VUS (scored 5 / 10). Computational evidence support a benign effect (BayesDel_noAF=-0.86).
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.318 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CYP2C19NM_000769.4 linkuse as main transcriptc.332-23A>G intron_variant ENST00000371321.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CYP2C19ENST00000371321.9 linkuse as main transcriptc.332-23A>G intron_variant 1 NM_000769.4 P1
CYP2C19ENST00000480405.2 linkuse as main transcriptc.332-23A>G intron_variant 1
CYP2C19ENST00000645461.1 linkuse as main transcriptn.1385-23A>G intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.173
AC:
26303
AN:
151746
Hom.:
2543
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.197
Gnomad AMI
AF:
0.182
Gnomad AMR
AF:
0.133
Gnomad ASJ
AF:
0.133
Gnomad EAS
AF:
0.312
Gnomad SAS
AF:
0.330
Gnomad FIN
AF:
0.185
Gnomad MID
AF:
0.0918
Gnomad NFE
AF:
0.148
Gnomad OTH
AF:
0.152
GnomAD3 exomes
AF:
0.180
AC:
45341
AN:
251244
Hom.:
4851
AF XY:
0.187
AC XY:
25439
AN XY:
135780
show subpopulations
Gnomad AFR exome
AF:
0.199
Gnomad AMR exome
AF:
0.105
Gnomad ASJ exome
AF:
0.134
Gnomad EAS exome
AF:
0.310
Gnomad SAS exome
AF:
0.327
Gnomad FIN exome
AF:
0.173
Gnomad NFE exome
AF:
0.147
Gnomad OTH exome
AF:
0.157
GnomAD4 exome
AF:
0.164
AC:
239816
AN:
1461026
Hom.:
21944
Cov.:
33
AF XY:
0.169
AC XY:
122657
AN XY:
726806
show subpopulations
Gnomad4 AFR exome
AF:
0.204
Gnomad4 AMR exome
AF:
0.108
Gnomad4 ASJ exome
AF:
0.134
Gnomad4 EAS exome
AF:
0.303
Gnomad4 SAS exome
AF:
0.324
Gnomad4 FIN exome
AF:
0.173
Gnomad4 NFE exome
AF:
0.148
Gnomad4 OTH exome
AF:
0.168
GnomAD4 genome
AF:
0.173
AC:
26324
AN:
151864
Hom.:
2548
Cov.:
32
AF XY:
0.177
AC XY:
13157
AN XY:
74166
show subpopulations
Gnomad4 AFR
AF:
0.196
Gnomad4 AMR
AF:
0.133
Gnomad4 ASJ
AF:
0.133
Gnomad4 EAS
AF:
0.312
Gnomad4 SAS
AF:
0.331
Gnomad4 FIN
AF:
0.185
Gnomad4 NFE
AF:
0.148
Gnomad4 OTH
AF:
0.157
Alfa
AF:
0.146
Hom.:
445
Bravo
AF:
0.167
Asia WGS
AF:
0.305
AC:
1059
AN:
3478

ClinVar

Significance: drug response
Submissions summary: Other:1
Revision: practice guideline
LINK: link

Submissions by phenotype

CYP2C19: no function Other:1
drug response, practice guidelinecurationClinical Pharmacogenetics Implementation Consortium-- Allele function

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.86
CADD
Benign
6.3
DANN
Benign
0.67
La Branchor
0.73
BranchPoint Hunter
5.0

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs12769205; hg19: chr10-96535124; COSMIC: COSV64907469; COSMIC: COSV64907469; API