17-50657066-A-G

Position:

• chr17-50657066-A-G

Variant summary

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

The NM_003786.4(ABCC3):​c.369A>G​(p.Ile123Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: ABCC3 NM_003786.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.49

Genes affected

ABCC3 (HGNC:54): (ATP binding cassette subfamily C member 3) 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. The specific function of this protein has not yet been determined; however, this protein may play a role in the transport of biliary and intestinal excretion of organic anions. Alternatively spliced variants which encode different protein isoforms have been described; however, not all variants have been fully characterized. [provided by RefSeq, Jul 2008]

ACMG classification

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/exons	MANE	Protein	UniProt
ABCC3	NM_003786.4	c.369A>G	p.Ile123Met	missense_variant	4/31	ENST00000285238.13	NP_003777.2
ABCC3	NM_001144070.2	c.369A>G	p.Ile123Met	missense_variant	4/12		NP_001137542.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ABCC3	ENST00000285238.13	c.369A>G	p.Ile123Met	missense_variant	4/31	1	NM_003786.4	ENSP00000285238.8

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 13, 2024

The c.369A>G (p.I123M) alteration is located in exon 4 (coding exon 4) of the ABCC3 gene. This alteration results from a A to G substitution at nucleotide position 369, causing the isoleucine (I) at amino acid position 123 to be replaced by a methionine (M). 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	0.13
BayesDel_addAF	Uncertain	0.050	T
BayesDel_noAF	Benign	-0.17
CADD	Uncertain	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.12	.;T
Eigen	Uncertain	0.32
Eigen_PC	Uncertain	0.29
FATHMM_MKL	Uncertain	0.83	D
LIST_S2	Uncertain	0.94	D;D
M_CAP	Benign	0.023	T
MetaRNN	Uncertain	0.66	D;D
MetaSVM	Benign	-0.63	T
MutationAssessor	Pathogenic	3.1	M;M
PrimateAI	Uncertain	0.65	T
PROVEAN	Uncertain	-2.8	D;N
REVEL	Uncertain	0.33
Sift	Benign	0.037	D;D
Sift4G	Uncertain	0.042	D;T
Polyphen		0.87	P;D
Vest4		0.76
MutPred		0.46		Loss of catalytic residue at L128 (P = 0.0353);Loss of catalytic residue at L128 (P = 0.0353);
MVP		0.64
MPC		0.60
ClinPred		0.98	D
GERP RS		4.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.13
gMVP		0.44

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-48734427;