rs150047440

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_014244.5(ADAMTS2):c.260G>T(p.Arg87Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000181 in 1,612,278 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. R87R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00019 ( 1 hom. )

Consequence

ADAMTS2
NM_014244.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:2

Conservation

PhyloP100: 4.86

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.16721895).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ADAMTS2	NM_014244.5 linkuse as main transcript	c.260G>T	p.Arg87Leu	missense_variant	2/22	ENST00000251582.12
ADAMTS2	NM_021599.4 linkuse as main transcript	c.260G>T	p.Arg87Leu	missense_variant	2/11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ADAMTS2	ENST00000251582.12 linkuse as main transcript	c.260G>T	p.Arg87Leu	missense_variant	2/22	1	NM_014244.5	P2	O95450-1
ADAMTS2	ENST00000274609.5 linkuse as main transcript	c.260G>T	p.Arg87Leu	missense_variant	2/11	1			O95450-2
ADAMTS2	ENST00000518335.3 linkuse as main transcript	c.260G>T	p.Arg87Leu	missense_variant	2/21	3		A2
ADAMTS2	ENST00000698889.1 linkuse as main transcript	c.260G>T	p.Arg87Leu	missense_variant, NMD_transcript_variant	2/21

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152242

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000216

AC:

AN:

241206

Hom.:

AF XY:

0.000204

AC XY:

AN XY:

132316

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.000478

Gnomad OTH exome

AF:

0.000169

GnomAD4 exome

AF:

0.000193

AC:

282

AN:

1460036

Hom.:

Cov.:

AF XY:

0.000204

AC XY:

148

AN XY:

726318

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000961

Gnomad4 NFE exome

AF:

0.000239

Gnomad4 OTH exome

AF:

0.000166

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152242

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74382

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000232

Hom.:

Bravo

AF:

0.0000831

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000118

AC:

ExAC

AF:

0.000323

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Ehlers-Danlos syndrome, dermatosparaxis type

Uncertain:1Benign:1

Benign, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 03, 2020	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Aug 09, 2022	This sequence change replaces arginine, which is basic and polar, with leucine, which is neutral and non-polar, at codon 87 of the ADAMTS2 protein (p.Arg87Leu). This variant is present in population databases (rs150047440, gnomAD 0.04%), including at least one homozygous and/or hemizygous individual. 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: 566194). 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: "Tolerated"; 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. -

not provided

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Oct 10, 2017	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Oct 10, 2019	- -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 07, 2021

The c.260G>T (p.R87L) alteration is located in exon 2 (coding exon 2) of the ADAMTS2 gene. This alteration results from a G to T substitution at nucleotide position 260, causing the arginine (R) at amino acid position 87 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

ADAMTS2-related disorder

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Oct 18, 2023

The ADAMTS2 c.260G>T variant is predicted to result in the amino acid substitution p.Arg87Leu. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.044% of alleles in individuals of European (Non-Finnish) descent in gnomAD (http://gnomad.broadinstitute.org/variant/5-178771042-C-A). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.44

Cadd

Pathogenic

Dann

Uncertain

1.0

DEOGEN2

Benign

0.30

T;.;.

Eigen

Benign

0.15

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Uncertain

0.92

M_CAP

Benign

0.055

MetaRNN

Benign

0.17

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.5

L;.;L

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.74

PROVEAN

Benign

-1.8

N;.;N

REVEL

Benign

0.11

Sift

Benign

0.12

T;.;T

Sift4G

Benign

0.20

T;.;D

Polyphen

0.26

B;.;B

Vest4

0.43

MVP

0.21

MPC

1.4

ClinPred

0.26

GERP RS

5.0

Varity_R

0.27

gMVP

0.84

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over