Genetic Variant ADAMTS13:p.Glu1326ArgfsTer6 (chr9-133459038-C-CA) – ACMG Classification: Pathogenic (16 pts)

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1_ModeratePS3PM2PP5_Very_Strong

The NM_139027.6(ADAMTS13):c.3975dupA(p.Glu1326ArgfsTer6) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000515 in 1,613,066 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★). ClinVar reports functional evidence for this variant: "SCV001653090: In vitro functional studies support that the truncation impacts protein secretion (Pimanda 2004 PMID:14512317, Shang 2006 PMID:16597588, Hassenpflug 2018 PMID:29554699)." and additional evidence is available in ClinVar.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000051 ( 0 hom. )

Consequence

ADAMTS13
NM_139027.6 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:6

Conservation

PhyloP100: -2.03

Publications

15 publications found

Variant links:

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)

ADAMTS13 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 16 ACMG points.

PVS1

Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.034 CDS is truncated, and there are 1 pathogenic variants in the truncated region.

PS3

PS3 evidence extracted from ClinVar submissions: SCV001653090: In vitro functional studies support that the truncation impacts protein secretion (Pimanda 2004 PMID: 14512317, Shang 2006 PMID: 16597588, Hassenpflug 2018 PMID: 29554699).; SCV005377936: Published functional studies demonstrate a damaging effect: abnormal protein secretion and reduced enzyme activity (PMID: 29554699, 14512317, 18835837, 16597588)

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 9-133459038-C-CA is Pathogenic according to our data. Variant chr9-133459038-C-CA is described in ClinVar as Pathogenic. ClinVar VariationId is 5807.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

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

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ADAMTS13	NM_139027.6	MANE Select	c.3975dupA	p.Glu1326ArgfsTer6	frameshift	Exon 29 of 29	NP_620596.2	Q76LX8-2
ADAMTS13	NM_139025.5		c.4143dupA	p.Glu1382ArgfsTer6	frameshift	Exon 29 of 29	NP_620594.1	Q76LX8-1
ADAMTS13	NM_139026.6		c.3882dupA	p.Glu1295ArgfsTer6	frameshift	Exon 29 of 29	NP_620595.1	Q76LX8-3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ADAMTS13	ENST00000355699.7	TSL:1 MANE Select	c.3975dupA	p.Glu1326ArgfsTer6	frameshift	Exon 29 of 29	ENSP00000347927.2	Q76LX8-2
ADAMTS13	ENST00000371929.7	TSL:1	c.4143dupA	p.Glu1382ArgfsTer6	frameshift	Exon 29 of 29	ENSP00000360997.3	Q76LX8-1
ADAMTS13	ENST00000356589.6	TSL:1	c.3882dupA	p.Glu1295ArgfsTer6	frameshift	Exon 29 of 29	ENSP00000348997.2	Q76LX8-3

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152164

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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

GnomAD2 exomes

AF:

0.0000680

AC:

AN:

250006

AF XY:

0.0000516

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000151

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000507

AC:

AN:

1460902

Hom.:

Cov.:

AF XY:

0.0000495

AC XY:

AN XY:

726730

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44706

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86240

European-Finnish (FIN)

AF:

0.0000381

AC:

AN:

52518

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000621

AC:

AN:

1111980

Other (OTH)

AF:

0.0000497

AC:

AN:

60376

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.486

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152164

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74320

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41436

American (AMR)

AF:

0.00

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.453

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000540

Hom.:

Bravo

AF:

0.0000680

EpiCase

AF:

0.000164

EpiControl

AF:

0.00

ClinVar

ClinVar submissions

Significance:Pathogenic

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

Upshaw-Schulman syndrome (3)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

PhyloP100

-2.0

Mutation Taster

=5/195

disease causing (ClinVar)

(source)

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over