rs72653766

Positions:

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PP3_Strong

The NM_001171.6(ABCC6):c.1318T>G(p.Cys440Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000929 in 1,614,060 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 (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

ABCC6
NM_001171.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:2

Conservation

PhyloP100: 6.35

Variant links:

Genes affected

ABCC6 (HGNC:57): (ATP binding cassette subfamily C member 6) 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). The encoded protein, a member of the MRP subfamily, is involved in multi-drug resistance. Mutations in this gene cause pseudoxanthoma elasticum. Alternatively spliced transcript variants that encode different proteins have been described for this gene. [provided by RefSeq, Jul 2008]

ABCC6 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM1

In a domain ABC transmembrane type-1 1 (size 282) in uniprot entity MRP6_HUMAN there are 31 pathogenic changes around while only 9 benign (78%) in NM_001171.6

PP3

MetaRNN computational evidence supports a deleterious effect, 0.974

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
ABCC6	NM_001171.6 linkuse as main transcript	c.1318T>G	p.Cys440Gly	missense_variant	10/31	ENST00000205557.12	NP_001162.5
ABCC6	NM_001351800.1 linkuse as main transcript	c.976T>G	p.Cys326Gly	missense_variant	10/31		NP_001338729.1
ABCC6	NR_147784.1 linkuse as main transcript	n.1355T>G		non_coding_transcript_exon_variant	10/29

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ABCC6	ENST00000205557.12 linkuse as main transcript	c.1318T>G	p.Cys440Gly	missense_variant	10/31	1	NM_001171.6	ENSP00000205557	P1	O95255-1
ABCC6	ENST00000574094.6 linkuse as main transcript	c.1318T>G	p.Cys440Gly	missense_variant	10/11	5		ENSP00000507301
ABCC6	ENST00000622290.5 linkuse as main transcript	c.1318T>G	p.Cys440Gly	missense_variant, NMD_transcript_variant	10/32	5		ENSP00000483331
ABCC6	ENST00000456970.6 linkuse as main transcript	c.1318T>G	p.Cys440Gly	missense_variant, NMD_transcript_variant	10/29	2		ENSP00000405002		O95255-3

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000752

AC:

AN:

1461856

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727228

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.00000540

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152204

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74366

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Autosomal recessive inherited pseudoxanthoma elasticum

Uncertain:1

Uncertain significance, no assertion criteria provided

research

PXE International

Feb 16, 2021

- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 21, 2022

This sequence change replaces cysteine, which is neutral and slightly polar, with glycine, which is neutral and non-polar, at codon 440 of the ABCC6 protein (p.Cys440Gly). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with pseudoxanthoma elasticum (PMID: 15459974). ClinVar contains an entry for this variant (Variation ID: 433229). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.30

BayesDel_addAF

Pathogenic

0.40

BayesDel_noAF

Pathogenic

0.33

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Uncertain

0.58

D;.

Eigen

Uncertain

0.56

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.72

T;T

M_CAP

Uncertain

0.19

MetaRNN

Pathogenic

0.97

D;D

MetaSVM

Uncertain

0.64

MutationAssessor

Uncertain

2.8

M;M

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.76

PROVEAN

Pathogenic

-5.2

D;.

REVEL

Pathogenic

0.88

Sift

Uncertain

0.017

D;.

Sift4G

Benign

0.063

T;D

Polyphen

1.0

D;.

Vest4

0.95

MutPred

0.78

Loss of stability (P = 0.0313);Loss of stability (P = 0.0313);

MVP

0.93

MPC

0.16

ClinPred

0.99

GERP RS

4.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.59

gMVP

0.66

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