Genetic Variant ADAMTS2:p.Arg1030Arg (chr5-179122644-G-T) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_014244.5(ADAMTS2):c.3088C>A(p.Arg1030Arg) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

ADAMTS2
NM_014244.5 splice_region, synonymous

Scores

Splicing: ADA: 0.00008869

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.112

Publications

0 publications found

Variant links:

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]

ADAMTS2 Gene-Disease associations (from GenCC):

Ehlers-Danlos syndrome, dermatosparaxis type
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet, G2P, PanelApp Australia, Illumina

ADAMTS2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.56).

BP7

Synonymous conserved (PhyloP=-0.112 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014244.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADAMTS2	NM_014244.5	MANE Select	c.3088C>A	p.Arg1030Arg	splice_region synonymous	Exon 20 of 22	NP_055059.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ADAMTS2	ENST00000251582.12	TSL:1 MANE Select	c.3088C>A	p.Arg1030Arg	splice_region synonymous	Exon 20 of 22	ENSP00000251582.7
ADAMTS2	ENST00000518335.3	TSL:3	c.3088C>A	p.Arg1030Arg	splice_region synonymous	Exon 20 of 21	ENSP00000489888.2
ADAMTS2	ENST00000523450.1	TSL:2	n.196C>A		splice_region non_coding_transcript_exon	Exon 1 of 3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1398284

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

689706

African (AFR)

AF:

0.00

AC:

AN:

31684

American (AMR)

AF:

0.00

AC:

AN:

35786

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25164

East Asian (EAS)

AF:

0.00

AC:

AN:

35862

South Asian (SAS)

AF:

0.00

AC:

AN:

79234

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48088

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5254

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1079270

Other (OTH)

AF:

0.00

AC:

AN:

57942

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.56

CADD

Benign

(source)

DANN

Benign

0.86

PhyloP100

-0.11

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000089

dbscSNV1_RF

Benign

0.0060

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

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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

Computational scores

Splicing

Publications

Other links and lift over