16-16192873-A-G

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001171.6(ABCC6):c.1388T>C(p.Leu463Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L463H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Consequence

ABCC6
NM_001171.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.56

Publications

0 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:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.938

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001171.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ABCC6	NM_001171.6	MANE Select	c.1388T>C	p.Leu463Pro	missense	Exon 11 of 31	NP_001162.5
ABCC6	NM_001440309.1		c.1388T>C	p.Leu463Pro	missense	Exon 11 of 31	NP_001427238.1
ABCC6	NM_001440310.1		c.1388T>C	p.Leu463Pro	missense	Exon 11 of 30	NP_001427239.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ABCC6	ENST00000205557.12	TSL:1 MANE Select	c.1388T>C	p.Leu463Pro	missense	Exon 11 of 31	ENSP00000205557.7
ABCC6	ENST00000456970.6	TSL:2	n.1388T>C		non_coding_transcript_exon	Exon 11 of 29	ENSP00000405002.2
ABCC6	ENST00000622290.5	TSL:5	n.1388T>C		non_coding_transcript_exon	Exon 11 of 32	ENSP00000483331.2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Jan 06, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces leucine, which is neutral and non-polar, with proline, which is neutral and non-polar, at codon 463 of the ABCC6 protein (p.Leu463Pro). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with ABCC6-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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 v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.69

BayesDel_addAF

Pathogenic

0.34

BayesDel_noAF

Pathogenic

0.25

CADD

Uncertain

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.78

Eigen

Pathogenic

0.81

Eigen_PC

Pathogenic

0.77

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.83

M_CAP

Pathogenic

0.49

MetaRNN

Pathogenic

0.94

MetaSVM

Pathogenic

1.0

MutationAssessor

Pathogenic

2.9

PhyloP100

7.6

PrimateAI

Uncertain

0.66

PROVEAN

Pathogenic

-4.9

REVEL

Pathogenic

0.94

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.86

MutPred

0.78

Loss of stability (P = 0.0149)

MVP

0.98

MPC

0.48

ClinPred

1.0

GERP RS

5.3

Varity_R

0.95

gMVP

0.92

Mutation Taster

=17/83

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over