5-179121749-T-A

Variant names:

• chr5-179121749-T-A
• NM_014244.5:c.3090A>T
• ADAMTS2 p.Arg1030Arg

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_014244.5(ADAMTS2):​c.3090A>T​(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)
• Consequence: ADAMTS2 NM_014244.5 splice_region, synonymous
• Scores: Splicing: ADA: 0.0001766
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.24
• Publications: 0 publications found

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: Orphanet, Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae), Illumina

ACMG classification

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=-0.49).
• BP7: Synonymous conserved (PhyloP=2.24 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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADAMTS2	NM_014244.5	MANE Select	c.3090A>T	p.Arg1030Arg	splice_region synonymous	Exon 21 of 22	NP_055059.2	O95450-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADAMTS2	ENST00000251582.12	TSL:1 MANE Select	c.3090A>T	p.Arg1030Arg	splice_region synonymous	Exon 21 of 22	ENSP00000251582.7	O95450-1
	ADAMTS2	ENST00000957641.1		c.3033A>T	p.Arg1011Arg	splice_region synonymous	Exon 21 of 22	ENSP00000627700.1
	ADAMTS2	ENST00000518335.3	TSL:3	c.3090A>T	p.Arg1030Arg	splice_region synonymous	Exon 21 of 21	ENSP00000489888.2	A0A1B0GTY3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.49
CADD	Benign	9.6
DANN	Benign	0.78
PhyloP100		2.2

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00018
dbscSNV1_RF	Benign	0.0
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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr5-178548750;