Genetic Variant ABCC6:p.Pro40Ser (chr16-16221750-G-A) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001171.6(ABCC6):c.118C>T(p.Pro40Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,504 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: 30)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ABCC6
NM_001171.6 missense

Scores

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 6.45

Publications

4 publications found

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 Gene-Disease associations (from GenCC):

arterial calcification, generalized, of infancy, 2
Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
autosomal recessive inherited pseudoxanthoma elasticum
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Laboratory for Molecular Medicine, Orphanet, Labcorp Genetics (formerly Invitae), G2P
arterial calcification of infancy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ABCC6 links:

ENSG00000305554 (HGNC:):

ENSG00000305554 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.972

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ABCC6	NM_001171.6 link	c.118C>T	p.Pro40Ser	missense_variant	Exon 2 of 31	ENST00000205557.12	NP_001162.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABCC6	ENST00000205557.12 link	c.118C>T	p.Pro40Ser	missense_variant	Exon 2 of 31	1	NM_001171.6	ENSP00000205557.7		O95255-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461504

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727048

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33470

American (AMR)

AF:

0.00

AC:

AN:

44690

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26124

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86236

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53400

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111762

Other (OTH)

AF:

0.00

AC:

AN:

60360

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Autosomal recessive inherited pseudoxanthoma elasticum

Uncertain:1

Feb 16, 2021

PXE International

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:research

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.34

BayesDel_addAF

Uncertain

0.084

BayesDel_noAF

Benign

-0.12

CADD

Uncertain

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.56

D;.;.

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.67

FATHMM_MKL

Uncertain

0.89

LIST_S2

Benign

0.82

T;T;.

M_CAP

Pathogenic

0.55

MetaRNN

Pathogenic

0.97

D;D;D

MetaSVM

Uncertain

-0.035

MutationAssessor

Pathogenic

3.3

M;M;M

PhyloP100

6.5

PrimateAI

Benign

0.40

PROVEAN

Pathogenic

-6.2

D;.;.

REVEL

Pathogenic

0.83

Sift

Uncertain

0.0010

D;.;.

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

D;.;.

Vest4

0.89

MutPred

0.77

Loss of catalytic residue at P40 (P = 0.1947);Loss of catalytic residue at P40 (P = 0.1947);Loss of catalytic residue at P40 (P = 0.1947);

MVP

0.82

MPC

2.4

ClinPred

1.0

GERP RS

4.4

Varity_R

0.61

gMVP

0.70

Mutation Taster

=24/76

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over