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GeneBe

19-41004158-G-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_000767.5(CYP2B6):​c.329G>T​(p.Gly110Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000169 in 989,700 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as drug response (no stars).

Frequency

Genomes: 𝑓 0.00067 ( 0 hom., cov: 28)
Exomes 𝑓: 0.000092 ( 0 hom. )

Consequence

CYP2B6
NM_000767.5 missense

Scores

2
5
7

Clinical Significance

drug response no assertion criteria provided O:1

Conservation

PhyloP100: 2.56
Variant links:
Genes affected
CYP2B6 (HGNC:2615): (cytochrome P450 family 2 subfamily B member 6) This gene, CYP2B6, 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 phenobarbital. The enzyme is known to metabolize some xenobiotics, such as the anti-cancer drugs cyclophosphamide and ifosphamide. Transcript variants for this gene have been described; however, it has not been resolved whether these transcripts are in fact produced by this gene or by a closely related pseudogene, CYP2B7. Both the gene and the pseudogene are located in the middle of a CYP2A pseudogene found in a large cluster of cytochrome P450 genes from the CYP2A, CYP2B and CYP2F subfamilies on chromosome 19q. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAd4 at 88 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CYP2B6NM_000767.5 linkuse as main transcriptc.329G>T p.Gly110Val missense_variant 2/9 ENST00000324071.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CYP2B6ENST00000324071.10 linkuse as main transcriptc.329G>T p.Gly110Val missense_variant 2/91 NM_000767.5 P1P20813-1
CYP2B6ENST00000593831.1 linkuse as main transcriptc.101G>T p.Gly34Val missense_variant 1/52
CYP2B6ENST00000598834.2 linkuse as main transcriptc.233G>T p.Gly78Val missense_variant, NMD_transcript_variant 2/105

Frequencies

GnomAD3 genomes
AF:
0.000658
AC:
86
AN:
130790
Hom.:
0
Cov.:
28
show subpopulations
Gnomad AFR
AF:
0.00237
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000864
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000136
AC:
34
AN:
250694
Hom.:
0
AF XY:
0.000111
AC XY:
15
AN XY:
135658
show subpopulations
Gnomad AFR exome
AF:
0.00162
Gnomad AMR exome
AF:
0.000174
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000920
AC:
79
AN:
858796
Hom.:
0
Cov.:
35
AF XY:
0.000105
AC XY:
46
AN XY:
438762
show subpopulations
Gnomad4 AFR exome
AF:
0.00259
Gnomad4 AMR exome
AF:
0.000135
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000655
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000798
Gnomad4 OTH exome
AF:
0.000340
GnomAD4 genome
AF:
0.000672
AC:
88
AN:
130904
Hom.:
0
Cov.:
28
AF XY:
0.000822
AC XY:
51
AN XY:
62016
show subpopulations
Gnomad4 AFR
AF:
0.00242
Gnomad4 AMR
AF:
0.0000863
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000287
Hom.:
0
ESP6500AA
AF:
0.000908
AC:
4
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000140
AC:
17
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: drug response
Submissions summary: Other:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Efavirenz response Other:1
drug response, no assertion criteria providedliterature onlyOMIMMay 15, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.65
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.13
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.042
T;T;T
Eigen
Uncertain
0.26
Eigen_PC
Benign
0.0021
FATHMM_MKL
Uncertain
0.96
D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.10
T;T;T
MetaSVM
Uncertain
0.11
D
MutationAssessor
Pathogenic
3.3
M;M;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.51
T
Polyphen
0.97
D;D;.
Vest4
0.64, 0.61
MVP
0.80
MPC
0.38
ClinPred
0.47
T
GERP RS
1.9
Varity_R
0.86
gMVP
0.57

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.37
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.37
Position offset: -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: rs186335453; hg19: chr19-41510063; API