chr7-87509442-A-G

Variant names:

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 1P and 8B. PP3BP4_StrongBS2

The NM_001348946.2(ABCB1):c.3322T>C(p.Trp1108Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000129 in 1,614,208 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

ABCB1
NM_001348946.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.31

Publications

11 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 -7 ACMG points.

PP3

Multiple lines of computational evidence support a deleterious effect 8: AlphaMissense, BayesDel_noAF, Cadd, phyloP100way_vertebrate, PrimateAI, PROVEAN, REVEL, REVEL [when max_spliceai, FATHMM_MKL, MetaRNN, MutationAssessor, MutationTaster was below the threshold]

BP4

Computational evidence support a benign effect (MetaRNN=0.048042208).

BS2

High AC in GnomAd4 at 120 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ABCB1	NM_001348946.2 link	c.3322T>C	p.Trp1108Arg	missense_variant	Exon 26 of 28	ENST00000622132.5	NP_001335875.1
ABCB1	NM_001348945.2 link	c.3532T>C	p.Trp1178Arg	missense_variant	Exon 30 of 32		NP_001335874.1
ABCB1	NM_000927.5 link	c.3322T>C	p.Trp1108Arg	missense_variant	Exon 27 of 29		NP_000918.2	P08183-1A4D1D2
ABCB1	NM_001348944.2 link	c.3322T>C	p.Trp1108Arg	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.3322T>C	p.Trp1108Arg	missense_variant	Exon 26 of 28	1	NM_001348946.2	ENSP00000478255.1		P08183-1

Frequencies

GnomAD3 genomes

AF:

0.000788

AC:

120

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00268

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000171

AC:

AN:

251162

AF XY:

0.000118

show subpopulations

Gnomad AFR exome

AF:

0.00246

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000602

AC:

AN:

1461876

Hom.:

Cov.:

AF XY:

0.0000523

AC XY:

AN XY:

727240

show subpopulations

African (AFR)

AF:

0.00224

AC:

AN:

33480

American (AMR)

AF:

0.0000671

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1112000

Other (OTH)

AF:

0.0000993

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.000788

AC:

120

AN:

152332

Hom.:

Cov.:

AF XY:

0.000805

AC XY:

AN XY:

74500

show subpopulations

African (AFR)

AF:

0.00267

AC:

111

AN:

41576

American (AMR)

AF:

0.000327

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68036

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.517

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000299

Hom.:

Bravo

AF:

0.000948

ESP6500AA

AF:

0.00227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000198

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.77

BayesDel_addAF

Uncertain

0.12

BayesDel_noAF

Pathogenic

0.39

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

Eigen

Uncertain

0.49

Eigen_PC

Uncertain

0.62

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.82

T;.;T

M_CAP

Uncertain

0.23

MetaRNN

Benign

0.048

T;T;T

MetaSVM

Uncertain

0.76

MutationAssessor

Benign

-0.085

N;N;.

PhyloP100

9.3

PrimateAI

Pathogenic

0.80

PROVEAN

Pathogenic

-13

.;D;D

REVEL

Pathogenic

0.73

Sift

Uncertain

0.0080

.;D;T

Sift4G

Benign

0.10

T;T;T

Polyphen

1.0

D;D;.

Vest4

0.78

MutPred

0.65

Gain of methylation at W1108 (P = 0.0238);Gain of methylation at W1108 (P = 0.0238);.;

MVP

0.72

MPC

0.89

ClinPred

0.20

GERP RS

6.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.88

gMVP

0.93

Mutation Taster

=44/56

disease causing

(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

Computational scores

Splicing

Publications

Other links and lift over