chr5-179207656-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_014244.5(ADAMTS2):​c.748G>A​(p.Ala250Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000656 in 1,613,538 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00067 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00065 ( 0 hom. )

Consequence

ADAMTS2
NM_014244.5 missense

Scores

18

Clinical Significance

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

Conservation

PhyloP100: -0.683
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.004889339).
BP6
Variant 5-179207656-C-T is Benign according to our data. Variant chr5-179207656-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 353133.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=2}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ADAMTS2NM_014244.5 linkc.748G>A p.Ala250Thr missense_variant Exon 4 of 22 ENST00000251582.12 NP_055059.2 O95450-1
ADAMTS2NM_021599.4 linkc.748G>A p.Ala250Thr missense_variant Exon 4 of 11 NP_067610.1 O95450-2
ADAMTS2XM_047417895.1 linkc.253G>A p.Ala85Thr missense_variant Exon 3 of 21 XP_047273851.1
ADAMTS2XM_047417896.1 linkc.-135G>A 5_prime_UTR_variant Exon 2 of 20 XP_047273852.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ADAMTS2ENST00000251582.12 linkc.748G>A p.Ala250Thr missense_variant Exon 4 of 22 1 NM_014244.5 ENSP00000251582.7 O95450-1
ADAMTS2ENST00000274609.5 linkc.748G>A p.Ala250Thr missense_variant Exon 4 of 11 1 ENSP00000274609.5 O95450-2
ADAMTS2ENST00000518335.3 linkc.748G>A p.Ala250Thr missense_variant Exon 4 of 21 3 ENSP00000489888.2 A0A1B0GTY3
ADAMTS2ENST00000698889.1 linkn.748G>A non_coding_transcript_exon_variant Exon 4 of 21 ENSP00000514008.1 A0A8V8TMU7

Frequencies

GnomAD3 genomes
AF:
0.000670
AC:
102
AN:
152222
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
Gnomad ASJ
AF:
0.00692
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000471
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000882
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000784
AC:
197
AN:
251180
Hom.:
0
AF XY:
0.000699
AC XY:
95
AN XY:
135840
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.000405
Gnomad ASJ exome
AF:
0.00447
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.000196
Gnomad FIN exome
AF:
0.00107
Gnomad NFE exome
AF:
0.000898
Gnomad OTH exome
AF:
0.000652
GnomAD4 exome
AF:
0.000654
AC:
956
AN:
1461316
Hom.:
0
Cov.:
62
AF XY:
0.000653
AC XY:
475
AN XY:
726988
show subpopulations
Gnomad4 AFR exome
AF:
0.000179
Gnomad4 AMR exome
AF:
0.000403
Gnomad4 ASJ exome
AF:
0.00497
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.000174
Gnomad4 FIN exome
AF:
0.00136
Gnomad4 NFE exome
AF:
0.000598
Gnomad4 OTH exome
AF:
0.000729
GnomAD4 genome
AF:
0.000670
AC:
102
AN:
152222
Hom.:
0
Cov.:
34
AF XY:
0.000672
AC XY:
50
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.000121
Gnomad4 AMR
AF:
0.000458
Gnomad4 ASJ
AF:
0.00692
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000471
Gnomad4 NFE
AF:
0.000882
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000963
Hom.:
2
Bravo
AF:
0.000540
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000698
AC:
6
ExAC
AF:
0.000758
AC:
92
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.000872
EpiControl
AF:
0.000830

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:4
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Ehlers-Danlos syndrome, dermatosparaxis type Uncertain:1Benign:2
Jan 07, 2020
Natera, Inc.
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jan 28, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

not provided Benign:2
Sep 17, 2020
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nov 01, 2023
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

ADAMTS2: BP4 -

Ehlers-Danlos syndrome Uncertain:1
Oct 01, 2018
Genome Diagnostics Laboratory, The Hospital for Sick Children
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Benign
-0.61
T
BayesDel_noAF
Benign
-0.68
CADD
Benign
1.3
DANN
Benign
0.74
DEOGEN2
Benign
0.11
T;.;.
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.039
N
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.0049
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.34
N;.;N
PrimateAI
Benign
0.44
T
PROVEAN
Benign
0.060
N;.;N
REVEL
Benign
0.028
Sift
Benign
0.44
T;.;T
Sift4G
Benign
0.28
T;.;T
Polyphen
0.0050
B;.;B
Vest4
0.097
MVP
0.36
MPC
0.39
ClinPred
0.010
T
GERP RS
-6.2
Varity_R
0.021
gMVP
0.38

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.

Other links and lift over

dbSNP: rs143764421; hg19: chr5-178634657; COSMIC: COSV51083440; API