rs763524702

chr5-179272958-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_014244.5(ADAMTS2):c.641G>A(p.Arg214Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000753 in 1,460,242 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R214W) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000075 (0 hom.)
• Consequence: ADAMTS2 NM_014244.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:2
• Conservation: PhyloP100: 5.55

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 Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ADAMTS2	NM_014244.5	c.641G>A	p.Arg214Gln	missense_variant	3/22	ENST00000251582.12
ADAMTS2	NM_021599.4	c.641G>A	p.Arg214Gln	missense_variant	3/11
ADAMTS2	XM_047417895.1	c.146G>A	p.Arg49Gln	missense_variant	2/21

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ADAMTS2	ENST00000251582.12	c.641G>A	p.Arg214Gln	missense_variant	3/22	1	NM_014244.5	P2
ADAMTS2	ENST00000274609.5	c.641G>A	p.Arg214Gln	missense_variant	3/11	1
ADAMTS2	ENST00000518335.3	c.641G>A	p.Arg214Gln	missense_variant	3/21	3		A2
ADAMTS2	ENST00000698889.1	c.641G>A	p.Arg214Gln	missense_variant, NMD_transcript_variant	3/21

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.0000280 AC: 7 AN: 250062 Hom.: 0 AF XY: 0.0000443 AC XY: 6 AN XY: 135382

Gnomad AFR exome AF: 0.0000618

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000530

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000753 AC: 11 AN: 1460242 Hom.: 0 Cov.: 32 AF XY: 0.0000110 AC XY: 8 AN XY: 726460

Gnomad4 AFR exome AF: 0.0000597

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000719

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000333 Hom.: 0

Bravo AF: 0.00000756

ExAC AF: 0.0000494 AC: 6

EpiCase AF: 0.00

EpiControl AF: 0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, single submitter

Submissions by phenotype

Ehlers-Danlos syndrome, dermatosparaxis type Uncertain:2

Uncertain significance, no assertion criteria provided	clinical testing	Natera, Inc.	Oct 28, 2019	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Jun 13, 2022	This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 214 of the ADAMTS2 protein (p.Arg214Gln). This variant is present in population databases (rs763524702, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with ADAMTS2-related conditions. ClinVar contains an entry for this variant (Variation ID: 537397). 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: "Possibly Damaging"; Align-GVGD: "Class C0"). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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 v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.098
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.22
Cadd	Pathogenic	26
Dann	Pathogenic	1.0
DEOGEN2	Uncertain	0.70	D;.;.
Eigen	Uncertain	0.54
Eigen_PC	Uncertain	0.48
FATHMM_MKL	Pathogenic	0.97	D
M_CAP	Uncertain	0.16	D
MetaRNN	Uncertain	0.51	D;D;D
MetaSVM	Uncertain	-0.25	T
MutationAssessor	Uncertain	2.1	M;.;M
MutationTaster	Benign	0.88	D;D
PrimateAI	Benign	0.48	T
PROVEAN	Benign	-2.2	N;.;N
REVEL	Benign	0.22
Sift	Benign	0.082	T;.;T
Sift4G	Uncertain	0.012	D;.;D
Polyphen		1.0	D;.;D
Vest4		0.64
MVP		0.68
MPC		1.2
ClinPred		0.85	D
GERP RS		3.7
Varity_R		0.23
gMVP		0.75

Splicing

Name	Calibrated prediction	Score	Prediction
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

LitVar

Other links and lift over

dbSNP: rs763524702; hg19: chr5-178699959; COSMIC: COSV99206681;