chr7-87595730-G-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_001348946.2(ABCB1):​c.117+36C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0445 in 1,516,832 control chromosomes in the GnomAD database, including 1,890 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as drug response (no stars).

Frequency

Genomes: 𝑓 0.063 ( 390 hom., cov: 32)
Exomes 𝑓: 0.043 ( 1500 hom. )

Consequence

ABCB1
NM_001348946.2 intron

Scores

2

Clinical Significance

drug response no assertion criteria provided O:1

Conservation

PhyloP100: 0.518
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.121 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ABCB1NM_001348946.2 linkuse as main transcriptc.117+36C>T intron_variant ENST00000622132.5
ABCB1NM_000927.5 linkuse as main transcriptc.117+36C>T intron_variant
ABCB1NM_001348944.2 linkuse as main transcriptc.117+36C>T intron_variant
ABCB1NM_001348945.2 linkuse as main transcriptc.327+36C>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ABCB1ENST00000622132.5 linkuse as main transcriptc.117+36C>T intron_variant 1 NM_001348946.2 P1P08183-1
ABCB1ENST00000265724.8 linkuse as main transcriptc.117+36C>T intron_variant 1 P1P08183-1
ABCB1ENST00000416177.1 linkuse as main transcriptc.117+36C>T intron_variant 5
ABCB1ENST00000543898.5 linkuse as main transcriptc.117+36C>T intron_variant 5 P08183-2

Frequencies

GnomAD3 genomes
AF:
0.0623
AC:
9461
AN:
151802
Hom.:
385
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.123
Gnomad AMI
AF:
0.00987
Gnomad AMR
AF:
0.0378
Gnomad ASJ
AF:
0.0219
Gnomad EAS
AF:
0.0506
Gnomad SAS
AF:
0.0315
Gnomad FIN
AF:
0.0345
Gnomad MID
AF:
0.0506
Gnomad NFE
AF:
0.0408
Gnomad OTH
AF:
0.0671
GnomAD3 exomes
AF:
0.0430
AC:
10674
AN:
248138
Hom.:
324
AF XY:
0.0409
AC XY:
5487
AN XY:
134138
show subpopulations
Gnomad AFR exome
AF:
0.123
Gnomad AMR exome
AF:
0.0384
Gnomad ASJ exome
AF:
0.0259
Gnomad EAS exome
AF:
0.0469
Gnomad SAS exome
AF:
0.0272
Gnomad FIN exome
AF:
0.0375
Gnomad NFE exome
AF:
0.0394
Gnomad OTH exome
AF:
0.0399
GnomAD4 exome
AF:
0.0425
AC:
58040
AN:
1364912
Hom.:
1500
Cov.:
22
AF XY:
0.0418
AC XY:
28600
AN XY:
684114
show subpopulations
Gnomad4 AFR exome
AF:
0.130
Gnomad4 AMR exome
AF:
0.0399
Gnomad4 ASJ exome
AF:
0.0264
Gnomad4 EAS exome
AF:
0.0603
Gnomad4 SAS exome
AF:
0.0267
Gnomad4 FIN exome
AF:
0.0382
Gnomad4 NFE exome
AF:
0.0409
Gnomad4 OTH exome
AF:
0.0462
GnomAD4 genome
AF:
0.0625
AC:
9498
AN:
151920
Hom.:
390
Cov.:
32
AF XY:
0.0609
AC XY:
4521
AN XY:
74294
show subpopulations
Gnomad4 AFR
AF:
0.124
Gnomad4 AMR
AF:
0.0378
Gnomad4 ASJ
AF:
0.0219
Gnomad4 EAS
AF:
0.0507
Gnomad4 SAS
AF:
0.0317
Gnomad4 FIN
AF:
0.0345
Gnomad4 NFE
AF:
0.0408
Gnomad4 OTH
AF:
0.0674
Alfa
AF:
0.0430
Hom.:
216
Bravo
AF:
0.0650
Asia WGS
AF:
0.0460
AC:
163
AN:
3478

ClinVar

Significance: drug response
Submissions summary: Other:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Tramadol response Other:1
drug response, no assertion criteria providedresearchBruce Budowle Laboratory, University of North Texas Health Science CenterApr 28, 2018- 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
BayesDel_noAF
Benign
-0.83
CADD
Benign
5.4
DANN
Benign
0.80

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: rs2235074; hg19: chr7-87225046; COSMIC: COSV55954081; API