rs112155474

Positions:

• chr5-179125184-C-A
• chr5-179125184-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2 BP4_Strong BP6_Moderate

The NM_014244.5(ADAMTS2):​c.2751-4G>T variant causes a splice region, splice polypyrimidine tract, intron 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. Variant has been reported in ClinVar as Likely benign (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: ADAMTS2 NM_014244.5 splice_region, splice_polypyrimidine_tract, intron
• Scores: Splicing: ADA: 0.00003782
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -1.20

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 Likely_benign. Variant got -4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.71).
• BP6: Variant 5-179125184-C-A is Benign according to our data. Variant chr5-179125184-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 1614298.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ADAMTS2	NM_014244.5	c.2751-4G>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000251582.12	NP_055059.2
ADAMTS2	XM_047417895.1	c.2256-4G>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant			XP_047273851.1
ADAMTS2	XM_047417896.1	c.1869-4G>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant			XP_047273852.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ADAMTS2	ENST00000251582.12	c.2751-4G>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_014244.5	ENSP00000251582	P2
ADAMTS2	ENST00000518335.3	c.2751-4G>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		3		ENSP00000489888	A2
ADAMTS2	ENST00000698889.1	c.2751-4G>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant, NMD_transcript_variant				ENSP00000514008

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 37

GnomAD4 genome Cov.: 33

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Ehlers-Danlos syndrome, dermatosparaxis type Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 02, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.71
CADD	Benign	4.9
DANN	Benign	0.68

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000038
dbscSNV1_RF	Benign	0.0040
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr5-178552185;