rs281875289

Variant names:

• chr9-133426056-T-C
• rs281875289
• NM_139027.6:c.533T>C

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_139027.6(ADAMTS13):​c.533T>C​(p.Ile178Thr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as not provided (no stars).

• Frequency: Genomes: not found (cov: 33)
• Consequence: ADAMTS13 NM_139027.6 missense
• Clinical Significance: not provided no classification provided O:1
• Conservation: PhyloP100: 5.24
• Publications: 3 publications found

Genes affected

ADAMTS13 (HGNC:1366): (ADAM metallopeptidase with thrombospondin type 1 motif 13) This gene encodes a member of a family of proteins containing several distinct regions, including a metalloproteinase domain, a disintegrin-like domain, and a thrombospondin type 1 (TS) motif. The enzyme encoded by this gene specifically cleaves von Willebrand Factor (vWF). Defects in this gene are associated with thrombotic thrombocytopenic purpura. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

ADAMTS13 Gene-Disease associations (from GenCC):

• congenital thrombotic thrombocytopenic purpura

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet, ClinGen, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.987

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_139027.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADAMTS13	NM_139027.6	MANE Select	c.533T>C	p.Ile178Thr	missense	Exon 5 of 29	NP_620596.2
	ADAMTS13	NM_139025.5		c.533T>C	p.Ile178Thr	missense	Exon 5 of 29	NP_620594.1
	ADAMTS13	NM_139026.6		c.533T>C	p.Ile178Thr	missense	Exon 5 of 29	NP_620595.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADAMTS13	ENST00000355699.7	TSL:1 MANE Select	c.533T>C	p.Ile178Thr	missense	Exon 5 of 29	ENSP00000347927.2
	ADAMTS13	ENST00000371929.7	TSL:1	c.533T>C	p.Ile178Thr	missense	Exon 5 of 29	ENSP00000360997.3
	ADAMTS13	ENST00000356589.6	TSL:1	c.533T>C	p.Ile178Thr	missense	Exon 5 of 29	ENSP00000348997.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions as Germline

Significance: not provided

Revision: no classification provided

Pathogenic	VUS	Benign	Condition
-	-	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.87
BayesDel_addAF	Pathogenic	0.40	D
BayesDel_noAF	Pathogenic	0.34
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.45	T
Eigen	Uncertain	0.46
Eigen_PC	Uncertain	0.40
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Uncertain	0.88	D
M_CAP	Pathogenic	0.31	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Uncertain	0.64	D
MutationAssessor	Uncertain	2.8	M
PhyloP100		5.2
PrimateAI	Benign	0.46	T
PROVEAN	Uncertain	-4.0	D
REVEL	Pathogenic	0.86
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0070	D
Polyphen		0.78	P
Vest4		0.79
MutPred		0.94		Loss of stability (P = 0.0281)
MVP		0.97
MPC		1.2
ClinPred		0.99	D
GERP RS		4.8
Varity_R		0.65
gMVP		0.83
Mutation Taster		=2/98	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs281875289; hg19: chr9-136291176;