rs72664226

Variant names:

• chr16-16203447-TG-T
• rs72664226
• NM_001171.6:c.960delC

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_001171.6(ABCC6):​c.960delC​(p.Ser321ValfsTer35) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ABCC6 NM_001171.6 frameshift
• Clinical Significance: Pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 1.43
• Publications: 3 publications found

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

ACMG classification

Our verdict: Pathogenic. The variant received 12 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 16-16203447-TG-T is Pathogenic according to our data. Variant chr16-16203447-TG-T is described in ClinVar as [Pathogenic]. Clinvar id is 433215.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ABCC6	NM_001171.6	c.960delC	p.Ser321ValfsTer35	frameshift_variant	Exon 8 of 31	ENST00000205557.12	NP_001162.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABCC6	ENST00000205557.12	c.960delC	p.Ser321ValfsTer35	frameshift_variant	Exon 8 of 31	1	NM_001171.6	ENSP00000205557.7

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

Autosomal recessive inherited pseudoxanthoma elasticum Pathogenic:1

Mar 02, 2021

PXE International

Significance: Likely pathogenic

Review Status: no assertion criteria provided

Collection Method: research

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Autosomal recessive inherited pseudoxanthoma elasticum;C1867450:Pseudoxanthoma elasticum, forme fruste;C3276161:Arterial calcification, generalized, of infancy, 2 Pathogenic:1

Mar 28, 2024

Fulgent Genetics, Fulgent Genetics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		1.4
Mutation Taster		=1/199	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs72664226; hg19: chr16-16297304;