rs35773040

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_000767.5(CYP2B6):​c.419G>A​(p.Arg140Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00325 in 1,613,998 control chromosomes in the GnomAD database, including 18 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0032 ( 1 hom., cov: 31)
Exomes 𝑓: 0.0033 ( 17 hom. )

Consequence

CYP2B6
NM_000767.5 missense

Scores

2
17

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.16

Publications

26 publications found
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 was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0068762302).
BP6
Variant 19-41004381-G-A is Benign according to our data. Variant chr19-41004381-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 2649918.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAd4 at 492 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CYP2B6NM_000767.5 linkc.419G>A p.Arg140Gln missense_variant Exon 3 of 9 ENST00000324071.10 NP_000758.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CYP2B6ENST00000324071.10 linkc.419G>A p.Arg140Gln missense_variant Exon 3 of 9 1 NM_000767.5 ENSP00000324648.2
CYP2B6ENST00000593831.1 linkc.191G>A p.Arg64Gln missense_variant Exon 2 of 5 2 ENSP00000470582.1
CYP2B6ENST00000594187.1 linkn.3G>A non_coding_transcript_exon_variant Exon 1 of 2 5
CYP2B6ENST00000598834.2 linkn.320G>A non_coding_transcript_exon_variant Exon 3 of 10 5 ENSP00000496294.1

Frequencies

GnomAD3 genomes
AF:
0.00325
AC:
494
AN:
152076
Hom.:
1
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000363
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00354
Gnomad ASJ
AF:
0.000864
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00435
Gnomad FIN
AF:
0.00565
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.00485
Gnomad OTH
AF:
0.00431
GnomAD2 exomes
AF:
0.00314
AC:
789
AN:
251270
AF XY:
0.00335
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.00168
Gnomad ASJ exome
AF:
0.000496
Gnomad EAS exome
AF:
0.000109
Gnomad FIN exome
AF:
0.00555
Gnomad NFE exome
AF:
0.00442
Gnomad OTH exome
AF:
0.00212
GnomAD4 exome
AF:
0.00326
AC:
4761
AN:
1461804
Hom.:
17
Cov.:
33
AF XY:
0.00332
AC XY:
2416
AN XY:
727202
show subpopulations
African (AFR)
AF:
0.000388
AC:
13
AN:
33472
American (AMR)
AF:
0.00145
AC:
65
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.000497
AC:
13
AN:
26136
East Asian (EAS)
AF:
0.0000504
AC:
2
AN:
39700
South Asian (SAS)
AF:
0.00268
AC:
231
AN:
86226
European-Finnish (FIN)
AF:
0.00543
AC:
290
AN:
53394
Middle Eastern (MID)
AF:
0.000867
AC:
5
AN:
5766
European-Non Finnish (NFE)
AF:
0.00360
AC:
4008
AN:
1111994
Other (OTH)
AF:
0.00222
AC:
134
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
307
614
921
1228
1535
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
116
232
348
464
580
<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:
0.00323
AC:
492
AN:
152194
Hom.:
1
Cov.:
31
AF XY:
0.00329
AC XY:
245
AN XY:
74422
show subpopulations
African (AFR)
AF:
0.000362
AC:
15
AN:
41482
American (AMR)
AF:
0.00353
AC:
54
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.000864
AC:
3
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00414
AC:
20
AN:
4826
European-Finnish (FIN)
AF:
0.00565
AC:
60
AN:
10614
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.00485
AC:
330
AN:
68016
Other (OTH)
AF:
0.00426
AC:
9
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
28
56
84
112
140
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
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:
0.00338
Hom.:
2
Bravo
AF:
0.00226
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.00311
AC:
12
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.00419
AC:
36
ExAC
AF:
0.00343
AC:
416
EpiCase
AF:
0.00294
EpiControl
AF:
0.00338

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Jan 01, 2023
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

CYP2B6: BP4, BS2 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.47
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.023
T;T;T
Eigen
Benign
-0.51
Eigen_PC
Benign
-0.58
FATHMM_MKL
Benign
0.051
N
LIST_S2
Benign
0.82
.;T;T
M_CAP
Benign
0.0050
T
MetaRNN
Benign
0.0069
T;T;T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
1.9
L;L;.
PhyloP100
1.2
PrimateAI
Benign
0.27
T
PROVEAN
Uncertain
-2.5
.;N;.
REVEL
Benign
0.069
Sift
Benign
0.052
.;T;.
Sift4G
Benign
0.085
.;T;D
Polyphen
0.020
B;B;.
Vest4
0.22, 0.23
MVP
0.39
MPC
0.079
ClinPred
0.030
T
GERP RS
1.7
PromoterAI
0.0052
Neutral
Varity_R
0.36
gMVP
0.14
Mutation Taster
=90/10
polymorphism

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: rs35773040; hg19: chr19-41510286; COSMIC: COSV105887593; API