Genetic Variant ABCC12:p.Val1326Ile (chr16-48083926-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001393797.1(ABCC12):c.3976G>A(p.Val1326Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000822 in 1,460,338 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000082 ( 1 hom. )

Consequence

ABCC12
NM_001393797.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.02

Variant links:

Genes affected

ABCC12 (HGNC:14640): (ATP binding cassette subfamily C member 12) This gene is a member of the superfamily of ATP-binding cassette (ABC) transporters and the encoded protein contains two ATP-binding domains and 12 transmembrane regions. ABC proteins transport various molecules across extra- and intracellular membranes. ABC genes are divided into seven distinct subfamilies: ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, and White. This gene is a member of the MRP subfamily which is involved in multi-drug resistance. This gene and another subfamily member are arranged head-to-tail on chromosome 16q12.1. Increased expression of this gene is associated with breast cancer. [provided by RefSeq, Jul 2008]

ABCC12 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ABCC12	NM_001393797.1 link	c.3976G>A	p.Val1326Ile	missense_variant	Exon 30 of 31	ENST00000311303.8	NP_001380726.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABCC12	ENST00000311303.8 link	c.3976G>A	p.Val1326Ile	missense_variant	Exon 30 of 31	1	NM_001393797.1	ENSP00000311030.4		A0A8J8YUR7

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

249790

Hom.:

AF XY:

0.00000741

AC XY:

AN XY:

135004

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000662

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.00000822

AC:

AN:

1460338

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

726454

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000931

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000663

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000247

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 30, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3976G>A (p.V1326I) alteration is located in exon 28 (coding exon 28) of the ABCC12 gene. This alteration results from a G to A substitution at nucleotide position 3976, causing the valine (V) at amino acid position 1326 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.039

BayesDel_noAF

Benign

-0.11

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.070

Eigen

Pathogenic

0.79

Eigen_PC

Pathogenic

0.73

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.93

M_CAP

Benign

0.064

MetaRNN

Uncertain

0.66

MetaSVM

Uncertain

0.66

MutationAssessor

Uncertain

2.5

PrimateAI

Benign

0.39

PROVEAN

Benign

-0.84

REVEL

Uncertain

0.63

Sift

Uncertain

0.0070

Sift4G

Pathogenic

0.0

Polyphen

0.99

Vest4

0.51

MutPred

0.73

Loss of catalytic residue at V1326 (P = 0.0079);

MVP

0.64

MPC

0.38

ClinPred

0.87

GERP RS

5.5

Varity_R

0.25

gMVP

0.43

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