dbSNP rs34783571: ABCG2:p.Asp620Tyr (chr4-88092344-C-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_004827.3(ABCG2):c.1858G>T(p.Asp620Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,460,698 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D620N) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ABCG2
NM_004827.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.81

Variant links:

Genes affected

ABCG2 (HGNC:74): (ATP binding cassette subfamily G member 2 (JR blood group)) The membrane-associated protein encoded by this gene is included in 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 White subfamily. Alternatively referred to as a breast cancer resistance protein, this protein functions as a xenobiotic transporter which may play a major role in multi-drug resistance. It likely serves as a cellular defense mechanism in response to mitoxantrone and anthracycline exposure. Significant expression of this protein has been observed in the placenta, which may suggest a potential role for this molecule in placenta tissue. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

ABCG2 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
ABCG2	NM_004827.3 link	c.1858G>T	p.Asp620Tyr	missense_variant	Exon 16 of 16	ENST00000237612.8	NP_004818.2	Q9UNQ0-1A1LUE4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ABCG2	ENST00000237612.8 link	c.1858G>T	p.Asp620Tyr	missense_variant	Exon 16 of 16	1	NM_004827.3	ENSP00000237612.3	Q9UNQ0-1
ABCG2	ENST00000515655 link	c.*12G>T		3_prime_UTR_variant	Exon 16 of 16	1		ENSP00000426917.1	Q9UNQ0-2
ABCG2	ENST00000650821.1 link	c.1858G>T	p.Asp620Tyr	missense_variant	Exon 17 of 17			ENSP00000498246.1	Q9UNQ0-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460698

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726536

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Uncertain

0.067

BayesDel_noAF

Benign

-0.14

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.37

Eigen

Benign

0.058

Eigen_PC

Benign

0.094

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.83

M_CAP

Benign

0.059

MetaRNN

Uncertain

0.70

MetaSVM

Uncertain

0.26

MutationAssessor

Uncertain

2.7

PrimateAI

Benign

0.40

PROVEAN

Pathogenic

-6.2

REVEL

Uncertain

0.48

Sift

Uncertain

0.025

Sift4G

Uncertain

0.0030

Polyphen

0.31

Vest4

0.60

MutPred

0.51

Gain of methylation at K616 (P = 0.0353);

MVP

0.82

MPC

0.056

ClinPred

0.94

GERP RS

4.4

Varity_R

0.55

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over