Variant 10-99782847-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PVS1_SupportingPM2

The NM_000392.5(ABCC2):c.3G>A(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,754 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ABCC2
NM_000392.5 start_lost

Scores

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 1.02

Variant links:

Genes affected

ABCC2 (HGNC:53): (ATP binding cassette subfamily C member 2) The 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 MRP subfamily which is involved in multi-drug resistance. This protein is expressed in the canalicular (apical) part of the hepatocyte and functions in biliary transport. Substrates include anticancer drugs such as vinblastine; therefore, this protein appears to contribute to drug resistance in mammalian cells. Several different mutations in this gene have been observed in patients with Dubin-Johnson syndrome (DJS), an autosomal recessive disorder characterized by conjugated hyperbilirubinemia. [provided by RefSeq, Jul 2008]

ABCC2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PVS1

Start lost variant, no pathogenic variants between lost start and next in-frame start position. Next in-frame start position is after 696 CDS bases. Genomic position: 99797160. Lost 0.150 part of the original CDS.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ABCC2	NM_000392.5 link	c.3G>A	p.Met1?	start_lost	Exon 1 of 32	ENST00000647814.1	NP_000383.2	Q92887

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABCC2	ENST00000647814.1 link	c.3G>A	p.Met1?	start_lost	Exon 1 of 32		NM_000392.5	ENSP00000497274.1		Q92887

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251334

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135836

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461754

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727186

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

ABCC2-related disorder

Uncertain:1

Dec 12, 2023

PreventionGenetics, part of Exact Sciences

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

The ABCC2 c.3G>A variant is predicted to disrupt the translation initiation site (Start Loss). To our knowledge, this variant has not been reported in the literature. However, loss-of-function variants have been reported upstream of the next putative in-frame start codon (Capalbo et al. 2019. PubMedID: 31589614; Shoda et al. 2003. PubMed ID: 14662121). This variant is reported in 0.0029% of alleles in individuals of Latino descent in gnomAD. Although we suspect that this variant might be pathogenic, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.57

BayesDel_noAF

Pathogenic

0.21

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.068

.;T;T

Eigen

Benign

-0.22

Eigen_PC

Benign

-0.12

FATHMM_MKL

Uncertain

0.82

LIST_S2

Uncertain

0.90

.;.;D

M_CAP

Uncertain

0.20

MetaRNN

Pathogenic

0.97

D;D;D

MetaSVM

Uncertain

-0.18

PROVEAN

Benign

-0.32

.;.;N

REVEL

Benign

0.18

Sift

Benign

0.039

.;.;D

Sift4G

Benign

0.23

.;.;T

Polyphen

0.077

.;B;B

Vest4

0.66

MutPred

0.96

Gain of catalytic residue at M1 (P = 0.0621);Gain of catalytic residue at M1 (P = 0.0621);Gain of catalytic residue at M1 (P = 0.0621);

MVP

0.77

ClinPred

0.98

GERP RS

3.7

Varity_R

0.51

gMVP

0.31

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over