rs2032582

Variant summary

Our verdict is Benign. The variant received -18 ACMG points: 2P and 20B. PM5BP4_StrongBP6_Very_StrongBA1

The NM_001348946.2(ABCB1):​c.2677T>G​(p.Ser893Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.549 in 1,611,172 control chromosomes in the GnomAD database, including 250,710 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S893Y) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.64 ( 33550 hom., cov: 32)
Exomes 𝑓: 0.54 ( 217160 hom. )

Consequence

ABCB1
NM_001348946.2 missense

Scores

17

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4O:2

Conservation

PhyloP100: 2.22

Publications

1557 publications found
Variant links:
Genes affected
ABCB1 (HGNC:40): (ATP binding cassette subfamily B member 1) The membrane-associated protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the MDR/TAP subfamily. Members of the MDR/TAP subfamily are involved in multidrug resistance. The protein encoded by this gene is an ATP-dependent drug efflux pump for xenobiotic compounds with broad substrate specificity. It is responsible for decreased drug accumulation in multidrug-resistant cells and often mediates the development of resistance to anticancer drugs. This protein also functions as a transporter in the blood-brain barrier. Mutations in this gene are associated with colchicine resistance and Inflammatory bowel disease 13. Alternative splicing and the use of alternative promoters results in multiple transcript variants. [provided by RefSeq, Feb 2017]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -18 ACMG points.

PM5
Other missense variant is known to change same aminoacid residue: Variant chr7-87531301-G-T is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 1164001.Status of the report is no_assertion_criteria_provided, 0 stars.
BP4
Computational evidence support a benign effect (MetaRNN=9.965592E-7).
BP6
Variant 7-87531302-A-C is Benign according to our data. Variant chr7-87531302-A-C is described in ClinVar as Benign. ClinVar VariationId is 166622.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.903 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCB1NM_001348946.2 linkc.2677T>G p.Ser893Ala missense_variant Exon 21 of 28 ENST00000622132.5 NP_001335875.1
ABCB1NM_001348945.2 linkc.2887T>G p.Ser963Ala missense_variant Exon 25 of 32 NP_001335874.1
ABCB1NM_000927.5 linkc.2677T>G p.Ser893Ala missense_variant Exon 22 of 29 NP_000918.2 P08183-1A4D1D2
ABCB1NM_001348944.2 linkc.2677T>G p.Ser893Ala missense_variant Exon 23 of 30 NP_001335873.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ABCB1ENST00000622132.5 linkc.2677T>G p.Ser893Ala missense_variant Exon 21 of 28 1 NM_001348946.2 ENSP00000478255.1 P08183-1

Frequencies

GnomAD3 genomes
AF:
0.641
AC:
97433
AN:
151960
Hom.:
33483
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.910
Gnomad AMI
AF:
0.599
Gnomad AMR
AF:
0.603
Gnomad ASJ
AF:
0.628
Gnomad EAS
AF:
0.474
Gnomad SAS
AF:
0.355
Gnomad FIN
AF:
0.476
Gnomad MID
AF:
0.570
Gnomad NFE
AF:
0.546
Gnomad OTH
AF:
0.647
GnomAD2 exomes
AF:
0.539
AC:
135082
AN:
250640
AF XY:
0.524
show subpopulations
Gnomad AFR exome
AF:
0.918
Gnomad AMR exome
AF:
0.548
Gnomad ASJ exome
AF:
0.624
Gnomad EAS exome
AF:
0.475
Gnomad FIN exome
AF:
0.469
Gnomad NFE exome
AF:
0.549
Gnomad OTH exome
AF:
0.548
GnomAD4 exome
AF:
0.539
AC:
786633
AN:
1459094
Hom.:
217160
Cov.:
36
AF XY:
0.532
AC XY:
386422
AN XY:
725932
show subpopulations
African (AFR)
AF:
0.926
AC:
30932
AN:
33402
American (AMR)
AF:
0.549
AC:
24522
AN:
44644
Ashkenazi Jewish (ASJ)
AF:
0.633
AC:
16508
AN:
26092
East Asian (EAS)
AF:
0.442
AC:
17501
AN:
39598
South Asian (SAS)
AF:
0.350
AC:
30155
AN:
86212
European-Finnish (FIN)
AF:
0.475
AC:
25288
AN:
53202
Middle Eastern (MID)
AF:
0.560
AC:
3216
AN:
5744
European-Non Finnish (NFE)
AF:
0.545
AC:
604939
AN:
1109954
Other (OTH)
AF:
0.557
AC:
33572
AN:
60246
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.468
Heterozygous variant carriers
0
17607
35213
52820
70426
88033
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
17074
34148
51222
68296
85370
<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:
0.642
AC:
97571
AN:
152078
Hom.:
33550
Cov.:
32
AF XY:
0.634
AC XY:
47095
AN XY:
74338
show subpopulations
African (AFR)
AF:
0.911
AC:
37810
AN:
41526
American (AMR)
AF:
0.604
AC:
9216
AN:
15262
Ashkenazi Jewish (ASJ)
AF:
0.628
AC:
2180
AN:
3470
East Asian (EAS)
AF:
0.474
AC:
2449
AN:
5170
South Asian (SAS)
AF:
0.358
AC:
1723
AN:
4818
European-Finnish (FIN)
AF:
0.476
AC:
5029
AN:
10574
Middle Eastern (MID)
AF:
0.575
AC:
169
AN:
294
European-Non Finnish (NFE)
AF:
0.546
AC:
37091
AN:
67942
Other (OTH)
AF:
0.643
AC:
1359
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
1594
3189
4783
6378
7972
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
748
1496
2244
2992
3740
<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:
0.561
Hom.:
60461
Bravo
AF:
0.679
TwinsUK
AF:
0.551
AC:
2042
ALSPAC
AF:
0.554
AC:
2136
ESP6500AA
AF:
0.892
AC:
3930
ESP6500EA
AF:
0.568
AC:
4889
ExAC
AF:
0.543
AC:
65897
EpiCase
AF:
0.543
EpiControl
AF:
0.545

ClinVar

Significance: Benign
Submissions summary: Benign:4Other:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Mar 13, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

not specified Benign:1
Jan 27, 2014
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

ABCB1-related disorder Benign:1
Jul 21, 2021
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Inflammatory bowel disease 13 Other:1
Dec 01, 2003
OMIM
Significance:risk factor
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Tramadol response Other:1
Apr 28, 2018
Bruce Budowle Laboratory, University of North Texas Health Science Center
Significance:drug response
Review Status:no assertion criteria provided
Collection Method:research

- T:M1 = postmortem ratio or tramadol to O-desmethyltramadol; t-MP = model-based clustered metabolizer phenotype inferred from T:M1

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.050
BayesDel_addAF
Benign
-0.58
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
14
DANN
Benign
0.33
Eigen
Benign
-0.82
Eigen_PC
Benign
-0.55
FATHMM_MKL
Benign
0.32
N
LIST_S2
Benign
0.23
T;.;T
MetaRNN
Benign
0.0000010
T;T;T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
-1.0
N;N;.
PhyloP100
2.2
PrimateAI
Benign
0.36
T
PROVEAN
Benign
1.7
.;N;N
REVEL
Benign
0.28
Sift
Benign
1.0
.;T;T
Sift4G
Benign
1.0
T;T;T
Polyphen
0.0
B;B;.
Vest4
0.043
MPC
0.17
ClinPred
0.0027
T
GERP RS
3.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.27
gMVP
0.54
Mutation Taster
=99/1
polymorphism (auto)

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: rs2032582; hg19: chr7-87160618; COSMIC: COSV55944840; API