rs55687637

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_000552.5(VWF):c.7887+12T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0101 in 1,613,368 control chromosomes in the GnomAD database, including 97 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0081 ( 7 hom., cov: 32)

Exomes 𝑓: 0.010 ( 90 hom. )

Consequence

VWF
NM_000552.5 intron

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: -0.953

Publications

1 publications found

Variant links:

Genes affected

VWF (HGNC:12726): (von Willebrand factor) This gene encodes a glycoprotein involved in hemostasis. The encoded preproprotein is proteolytically processed following assembly into large multimeric complexes. These complexes function in the adhesion of platelets to sites of vascular injury and the transport of various proteins in the blood. Mutations in this gene result in von Willebrand disease, an inherited bleeding disorder. An unprocessed pseudogene has been found on chromosome 22. [provided by RefSeq, Oct 2015]

VWF Gene-Disease associations (from GenCC):

hereditary von Willebrand disease
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
von Willebrand disease type 2B
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
von Willebrand disease 2
Inheritance: AR, AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
von Willebrand disease 1
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
von Willebrand disease type 2A
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
von Willebrand disease type 2M
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
von Willebrand disease 3
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
von Willebrand disease type 2N
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

VWF links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.86).

BP6

Variant 12-5967474-A-G is Benign according to our data. Variant chr12-5967474-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 256701.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00809 (1231/152200) while in subpopulation NFE AF = 0.0124 (844/67984). AF 95% confidence interval is 0.0117. There are 7 homozygotes in GnomAd4. There are 577 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 7 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VWF	NM_000552.5 link	c.7887+12T>C		intron_variant	Intron 47 of 51	ENST00000261405.10	NP_000543.3	P04275-1
VWF	XM_047429501.1 link	c.7887+12T>C		intron_variant	Intron 47 of 51		XP_047285457.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
VWF	ENST00000261405.10 link	c.7887+12T>C		intron_variant	Intron 47 of 51	1	NM_000552.5	ENSP00000261405.5		P04275-1
VWF	ENST00000621700.1 link	n.205+12T>C		intron_variant	Intron 2 of 3	3

Frequencies

GnomAD3 genomes

AF:

0.00810

AC:

1232

AN:

152082

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00193

Gnomad AMI

AF:

0.0407

Gnomad AMR

AF:

0.00760

Gnomad ASJ

AF:

0.0112

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00166

Gnomad FIN

AF:

0.00764

Gnomad MID

AF:

0.0127

Gnomad NFE

AF:

0.0124

Gnomad OTH

AF:

0.0110

GnomAD2 exomes

AF:

0.00777

AC:

1951

AN:

251224

AF XY:

0.00772

show subpopulations

Gnomad AFR exome

AF:

0.00277

Gnomad AMR exome

AF:

0.00517

Gnomad ASJ exome

AF:

0.0112

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00767

Gnomad NFE exome

AF:

0.0117

Gnomad OTH exome

AF:

0.00798

GnomAD4 exome

AF:

0.0103

AC:

15017

AN:

1461168

Hom.:

Cov.:

AF XY:

0.0102

AC XY:

7397

AN XY:

726942

show subpopulations

African (AFR)

AF:

0.00158

AC:

AN:

33470

American (AMR)

AF:

0.00566

AC:

253

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.0107

AC:

279

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00239

AC:

206

AN:

86248

European-Finnish (FIN)

AF:

0.00714

AC:

381

AN:

53396

Middle Eastern (MID)

AF:

0.0127

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.0119

AC:

13197

AN:

1111366

Other (OTH)

AF:

0.00952

AC:

575

AN:

60378

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

709

1418

2127

2836

3545

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

480

960

1440

1920

2400

<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:

0.00809

AC:

1231

AN:

152200

Hom.:

Cov.:

AF XY:

0.00775

AC XY:

577

AN XY:

74416

show subpopulations

African (AFR)

AF:

0.00193

AC:

AN:

41546

American (AMR)

AF:

0.00759

AC:

116

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.0112

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5168

South Asian (SAS)

AF:

0.00166

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00764

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.0102

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0124

AC:

844

AN:

67984

Other (OTH)

AF:

0.0109

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

125

188

250

313

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<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:

0.00923

Hom.:

Bravo

AF:

0.00804

Asia WGS

AF:

0.00144

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:5

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Benign:3

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

not provided

Benign:2

Sep 20, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jul 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

VWF: BS1, BS2 -

Hereditary von Willebrand disease

Uncertain:1

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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.86

CADD

Benign

2.0

(source)

DANN

Benign

0.46

PhyloP100

-0.95

Mutation Taster

=100/0

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over