rs35810889

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001348946.2(ABCB1):​c.266T>C​(p.Met89Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000208 in 1,613,706 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M89I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00021 ( 0 hom. )

Consequence

ABCB1
NM_001348946.2 missense

Scores

18

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.82

Publications

9 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 -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.009366065).
BS2
High AC in GnomAd4 at 34 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCB1NM_001348946.2 linkc.266T>C p.Met89Thr missense_variant Exon 4 of 28 ENST00000622132.5 NP_001335875.1
ABCB1NM_001348945.2 linkc.476T>C p.Met159Thr missense_variant Exon 8 of 32 NP_001335874.1
ABCB1NM_000927.5 linkc.266T>C p.Met89Thr missense_variant Exon 5 of 29 NP_000918.2 P08183-1A4D1D2
ABCB1NM_001348944.2 linkc.266T>C p.Met89Thr missense_variant Exon 6 of 30 NP_001335873.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ABCB1ENST00000622132.5 linkc.266T>C p.Met89Thr missense_variant Exon 4 of 28 1 NM_001348946.2 ENSP00000478255.1 P08183-1
ABCB1ENST00000265724.8 linkc.266T>C p.Met89Thr missense_variant Exon 5 of 29 1 ENSP00000265724.3 P08183-1
ABCB1ENST00000543898.5 linkc.266T>C p.Met89Thr missense_variant Exon 5 of 28 5 ENSP00000444095.1 P08183-2
ABCB1ENST00000416177.1 linkc.*122T>C downstream_gene_variant 5 ENSP00000399419.1 E7EWT8

Frequencies

GnomAD3 genomes
AF:
0.000223
AC:
34
AN:
152206
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
Gnomad ASJ
AF:
0.00720
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000422
AC:
106
AN:
251186
AF XY:
0.000354
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000289
Gnomad ASJ exome
AF:
0.00804
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000880
Gnomad OTH exome
AF:
0.000815
GnomAD4 exome
AF:
0.000207
AC:
302
AN:
1461500
Hom.:
0
Cov.:
31
AF XY:
0.000201
AC XY:
146
AN XY:
727038
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33478
American (AMR)
AF:
0.000291
AC:
13
AN:
44706
Ashkenazi Jewish (ASJ)
AF:
0.00819
AC:
214
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39684
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53272
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000360
AC:
40
AN:
1111822
Other (OTH)
AF:
0.000563
AC:
34
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
Heterozygous variant carriers
0
18
35
53
70
88
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.000223
AC:
34
AN:
152206
Hom.:
0
Cov.:
32
AF XY:
0.000202
AC XY:
15
AN XY:
74366
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41446
American (AMR)
AF:
0.000196
AC:
3
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00720
AC:
25
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5206
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4838
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68024
Other (OTH)
AF:
0.000478
AC:
1
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
3
5
8
10
13
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000422
Hom.:
0
Bravo
AF:
0.000261
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000465
AC:
4
ExAC
AF:
0.000453
AC:
55
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.067
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
0.0020
DANN
Benign
0.16
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.0066
N
LIST_S2
Benign
0.14
T;.;T
M_CAP
Benign
0.046
D
MetaRNN
Benign
0.0094
T;T;T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
-0.29
N;N;N
PhyloP100
-1.8
PrimateAI
Benign
0.25
T
PROVEAN
Benign
0.87
.;N;N
REVEL
Benign
0.14
Sift
Benign
0.61
.;T;T
Sift4G
Benign
0.42
T;T;T
Polyphen
0.0
B;B;.
Vest4
0.046
MVP
0.068
MPC
0.24
ClinPred
0.021
T
GERP RS
-3.0
Varity_R
0.22
gMVP
0.24
Mutation Taster
=94/6
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: rs35810889; hg19: chr7-87214848; API