Variant 1-1437095-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_022834.5(VWA1):c.242G>A(p.Arg81Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000156 in 1,605,156 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

VWA1
NM_022834.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.928

Variant links:

Genes affected

VWA1 (HGNC:30910): (von Willebrand factor A domain containing 1) VWA1 belongs to the von Willebrand factor (VWF; MIM 613160) A (VWFA) domain superfamily of extracellular matrix proteins and appears to play a role in cartilage structure and function (Fitzgerald et al., 2002 [PubMed 12062410]).[supplied by OMIM, Nov 2010]

VWA1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13039786).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
VWA1	NM_022834.5 link	c.242G>A	p.Arg81Gln	missense_variant	2/3	ENST00000476993.2	NP_073745.2	Q6PCB0-1
VWA1	NM_199121.3 link	c.74-227G>A		intron_variant			NP_954572.2	Q6PCB0-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
VWA1	ENST00000476993.2 link	c.242G>A	p.Arg81Gln	missense_variant	2/3	1	NM_022834.5	ENSP00000417185.1	Q6PCB0-1
VWA1	ENST00000495558.1 link	c.137G>A	p.Arg46Gln	missense_variant	2/2	2		ENSP00000463643.1	J3QLP3
VWA1	ENST00000471398.1 link	c.362G>A	p.Arg121Gln	missense_variant	2/2	3		ENSP00000464343.1	J3QRR0
VWA1	ENST00000338660.5 link	c.74-227G>A		intron_variant		2		ENSP00000423404.1	Q6PCB0-3

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152256

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000164

AC:

AN:

244206

Hom.:

AF XY:

0.0000151

AC XY:

AN XY:

132704

show subpopulations

Gnomad AFR exome

AF:

0.0000628

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000275

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000158

AC:

AN:

1452900

Hom.:

Cov.:

AF XY:

0.0000111

AC XY:

AN XY:

721472

show subpopulations

Gnomad4 AFR exome

AF:

0.0000600

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000181

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152256

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74382

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000868

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.00000827

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 01, 2024

The c.242G>A (p.R81Q) alteration is located in exon 2 (coding exon 2) of the VWA1 gene. This alteration results from a G to A substitution at nucleotide position 242, causing the arginine (R) at amino acid position 81 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.064

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.52

CADD

Benign

0.34

DANN

Benign

0.75

DEOGEN2

Benign

0.10

.;T;.

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.0081

LIST_S2

Benign

0.59

T;T;T

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.13

T;T;T

MetaSVM

Benign

-0.85

MutationAssessor

Benign

0.76

.;N;.

PrimateAI

Uncertain

0.68

PROVEAN

Benign

0.43

.;N;.

REVEL

Benign

0.095

Sift

Benign

0.24

.;T;.

Sift4G

Benign

0.65

T;T;T

Polyphen

0.17

.;B;.

Vest4

0.10

MutPred

0.39

.;Loss of methylation at R81 (P = 0.1043);.;

MVP

0.78

MPC

0.037

ClinPred

0.028

GERP RS

-6.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.029

gMVP

0.22

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over