rs1057517277

Positions:

• chr5-179128117-ACCTGTGC-A

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_014244.5(ADAMTS2):​c.2458-6_2458delGCACAGG​(p.Val820fs) variant causes a frameshift, splice acceptor, splice region, intron change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ADAMTS2 NM_014244.5 frameshift, splice_acceptor, splice_region, intron
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 6.63

Genes affected

ADAMTS2 (HGNC:218): (ADAM metallopeptidase with thrombospondin type 1 motif 2) This gene encodes a member of the ADAMTS (a disintegrin and metalloproteinase with thrombospondin motifs) protein family. Members of the family share several distinct protein modules, including a propeptide region, a metalloproteinase domain, a disintegrin-like domain, and a thrombospondin type 1 (TS) motif. Individual members of this family differ in the number of C-terminal TS motifs, and some have unique C-terminal domains. The encoded preproprotein is proteolytically processed to generate the mature procollagen N-proteinase. This proteinase excises the N-propeptide of the fibrillar procollagens types I-III and type V. Mutations in this gene cause Ehlers-Danlos syndrome type VIIC, a recessively inherited connective-tissue disorder. Alternative splicing results in multiple transcript variants, at least one of which encodes an isoform that is proteolytically processed. [provided by RefSeq, Feb 2016]

ACMG classification

Verdict is Pathogenic. Variant got 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 5-179128117-ACCTGTGC-A is Pathogenic according to our data. Variant chr5-179128117-ACCTGTGC-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 371445.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ADAMTS2	NM_014244.5	c.2458-6_2458delGCACAGG	p.Val820fs	frameshift_variant, splice_acceptor_variant, splice_region_variant, intron_variant	17/22	ENST00000251582.12	NP_055059.2
ADAMTS2	XM_047417895.1	c.1963-6_1963delGCACAGG	p.Val655fs	frameshift_variant, splice_acceptor_variant, splice_region_variant, intron_variant	16/21		XP_047273851.1
ADAMTS2	XM_047417896.1	c.1576-6_1576delGCACAGG	p.Val526fs	frameshift_variant, splice_acceptor_variant, splice_region_variant, intron_variant	15/20		XP_047273852.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ADAMTS2	ENST00000251582.12	c.2458-6_2458delGCACAGG	p.Val820fs	frameshift_variant, splice_acceptor_variant, splice_region_variant, intron_variant	17/22	1	NM_014244.5	ENSP00000251582.7
ADAMTS2	ENST00000518335.3	c.2458-6_2458delGCACAGG	p.Val820fs	frameshift_variant, splice_acceptor_variant, splice_region_variant, intron_variant	17/21	3		ENSP00000489888.2
ADAMTS2	ENST00000698889.1	n.2458-6_2458delGCACAGG		splice_acceptor_variant, splice_region_variant, intron_variant, non_coding_transcript_exon_variant	17/21			ENSP00000514008.1

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Ehlers-Danlos syndrome, dermatosparaxis type Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Counsyl

Oct 18, 2016

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Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1057517277; hg19: chr5-178555118;