rs35023033

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001348946.2(ABCB1):​c.2005C>T​(p.Arg669Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000454 in 1,614,042 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 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 nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in UniProt.

Frequency

Genomes: 𝑓 0.0024 ( 1 hom., cov: 33)
Exomes 𝑓: 0.00025 ( 0 hom. )

Consequence

ABCB1
NM_001348946.2 missense

Scores

1
4
13

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.33
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 made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0052506924).
BS2
High AC in GnomAd4 at 366 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCB1NM_001348946.2 linkc.2005C>T p.Arg669Cys missense_variant Exon 16 of 28 ENST00000622132.5 NP_001335875.1
ABCB1NM_001348945.2 linkc.2215C>T p.Arg739Cys missense_variant Exon 20 of 32 NP_001335874.1
ABCB1NM_000927.5 linkc.2005C>T p.Arg669Cys missense_variant Exon 17 of 29 NP_000918.2 P08183-1A4D1D2
ABCB1NM_001348944.2 linkc.2005C>T p.Arg669Cys missense_variant Exon 18 of 30 NP_001335873.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ABCB1ENST00000622132.5 linkc.2005C>T p.Arg669Cys missense_variant Exon 16 of 28 1 NM_001348946.2 ENSP00000478255.1 P08183-1
ABCB1ENST00000265724.8 linkc.2005C>T p.Arg669Cys missense_variant Exon 17 of 29 1 ENSP00000265724.3 P08183-1
ABCB1ENST00000543898.5 linkc.1813C>T p.Arg605Cys missense_variant Exon 16 of 28 5 ENSP00000444095.1 P08183-2

Frequencies

GnomAD3 genomes
AF:
0.00241
AC:
366
AN:
152126
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00838
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000655
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:
0.000118
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000613
AC:
154
AN:
251370
Hom.:
0
AF XY:
0.000464
AC XY:
63
AN XY:
135848
show subpopulations
Gnomad AFR exome
AF:
0.00830
Gnomad AMR exome
AF:
0.000318
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000528
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000250
AC:
366
AN:
1461798
Hom.:
0
Cov.:
32
AF XY:
0.000220
AC XY:
160
AN XY:
727200
show subpopulations
Gnomad4 AFR exome
AF:
0.00824
Gnomad4 AMR exome
AF:
0.000268
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000360
Gnomad4 OTH exome
AF:
0.000530
GnomAD4 genome
AF:
0.00240
AC:
366
AN:
152244
Hom.:
1
Cov.:
33
AF XY:
0.00246
AC XY:
183
AN XY:
74440
show subpopulations
Gnomad4 AFR
AF:
0.00836
Gnomad4 AMR
AF:
0.000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000396
Hom.:
0
Bravo
AF:
0.00269
ESP6500AA
AF:
0.00772
AC:
34
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000717
AC:
87
EpiCase
AF:
0.00
EpiControl
AF:
0.000178

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.16
CADD
Benign
21
DANN
Uncertain
0.98
Eigen
Benign
-0.49
Eigen_PC
Benign
-0.48
FATHMM_MKL
Benign
0.45
N
LIST_S2
Benign
0.75
T;.;T
M_CAP
Benign
0.071
D
MetaRNN
Benign
0.0053
T;T;T
MetaSVM
Benign
-0.64
T
MutationAssessor
Pathogenic
2.9
M;M;.
PrimateAI
Benign
0.26
T
PROVEAN
Uncertain
-3.9
.;D;D
REVEL
Benign
0.21
Sift
Uncertain
0.024
.;D;D
Sift4G
Uncertain
0.034
D;D;D
Polyphen
0.016
B;B;.
Vest4
0.26
MVP
0.45
MPC
0.29
ClinPred
0.072
T
GERP RS
2.9
Varity_R
0.15
gMVP
0.42

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs35023033; hg19: chr7-87174198; COSMIC: COSV99713427; COSMIC: COSV99713427; API