7-87509343-A-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BA1

The NM_001348946.2(ABCB1):c.3421T>A(p.Ser1141Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00332 in 1,614,076 control chromosomes in the GnomAD database, including 155 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.018 ( 72 hom., cov: 32)

Exomes 𝑓: 0.0018 ( 83 hom. )

Consequence

ABCB1
NM_001348946.2 missense

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.131

Publications

24 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]

ABCB1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0023221076).

BP6

Variant 7-87509343-A-T is Benign according to our data. Variant chr7-87509343-A-T is described in ClinVar as Likely_benign. ClinVar VariationId is 3038471.Status of the report is no_assertion_criteria_provided, 0 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0603 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
ABCB1	NM_001348946.2 link	c.3421T>A	p.Ser1141Thr	missense_variant	Exon 26 of 28	ENST00000622132.5	NP_001335875.1
ABCB1	NM_001348945.2 link	c.3631T>A	p.Ser1211Thr	missense_variant	Exon 30 of 32		NP_001335874.1
ABCB1	NM_000927.5 link	c.3421T>A	p.Ser1141Thr	missense_variant	Exon 27 of 29		NP_000918.2
ABCB1	NM_001348944.2 link	c.3421T>A	p.Ser1141Thr	missense_variant	Exon 28 of 30		NP_001335873.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABCB1	ENST00000622132.5 link	c.3421T>A	p.Ser1141Thr	missense_variant	Exon 26 of 28	1	NM_001348946.2	ENSP00000478255.1

Frequencies

GnomAD3 genomes

AF:

0.0180

AC:

2738

AN:

152122

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0622

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00786

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000622

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000220

Gnomad OTH

AF:

0.0129

GnomAD2 exomes

AF:

0.00468

AC:

1176

AN:

251304

AF XY:

0.00341

show subpopulations

Gnomad AFR exome

AF:

0.0648

Gnomad AMR exome

AF:

0.00260

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.0000880

Gnomad OTH exome

AF:

0.00277

GnomAD4 exome

AF:

0.00178

AC:

2602

AN:

1461836

Hom.:

Cov.:

AF XY:

0.00149

AC XY:

1084

AN XY:

727216

show subpopulations

African (AFR)

AF:

0.0643

AC:

2153

AN:

33480

American (AMR)

AF:

0.00331

AC:

148

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000139

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00225

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000360

AC:

AN:

1111962

Other (OTH)

AF:

0.00391

AC:

236

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

171

343

514

686

857

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

140

210

280

350

<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:

0.0181

AC:

2754

AN:

152240

Hom.:

Cov.:

AF XY:

0.0169

AC XY:

1259

AN XY:

74452

show subpopulations

African (AFR)

AF:

0.0624

AC:

2588

AN:

41506

American (AMR)

AF:

0.00785

AC:

120

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.000622

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000220

AC:

AN:

68028

Other (OTH)

AF:

0.0132

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

134

267

401

534

668

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

120

150

<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:

0.00269

Hom.:

Bravo

AF:

0.0205

ESP6500AA

AF:

0.0615

AC:

271

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00615

AC:

747

Asia WGS

AF:

0.00376

AC:

AN:

3476

EpiCase

AF:

0.000164

EpiControl

AF:

0.0000593

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

ABCB1-related disorder

Benign:1

Feb 24, 2020

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). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.077

BayesDel_addAF

Benign

-0.37

BayesDel_noAF

Benign

-0.25

CADD

Benign

(source)

DANN

Benign

0.84

Eigen

Benign

-0.77

Eigen_PC

Benign

-0.69

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.51

T;.;T

MetaRNN

Benign

0.0023

T;T;T

MetaSVM

Benign

-0.86

MutationAssessor

Benign

0.37

N;N;.

PhyloP100

0.13

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-0.91

.;N;N

REVEL

Benign

0.20

Sift

Benign

0.41

.;T;T

Sift4G

Benign

0.70

T;T;T

Polyphen

0.0070

B;B;.

Vest4

0.090

MVP

0.61

MPC

0.19

ClinPred

0.0096

GERP RS

3.6

Varity_R

0.13

gMVP

0.66

Mutation Taster

=98/2

polymorphism (auto)

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over