Genetic Variant VWA3A:p.Arg135Cys (chr16-22100468-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_173615.5(VWA3A):c.403C>T(p.Arg135Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000115 in 1,551,578 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R135H) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

VWA3A
NM_173615.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.275

Publications

1 publications found

Variant links:

Genes affected

VWA3A (HGNC:27088): (von Willebrand factor A domain containing 3A) Predicted to be located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

VWA3A links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.01190266).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_173615.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VWA3A	NM_173615.5	MANE Select	c.403C>T	p.Arg135Cys	missense	Exon 5 of 34	NP_775886.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
VWA3A	ENST00000389398.10	TSL:5 MANE Select	c.403C>T	p.Arg135Cys	missense	Exon 5 of 34	ENSP00000374049.5	A6NCI4-1
VWA3A	ENST00000568328.5	TSL:1	c.403C>T	p.Arg135Cys	missense	Exon 5 of 23	ENSP00000457770.1	H3BUS3
VWA3A	ENST00000567131.5	TSL:4	c.-122C>T		5_prime_UTR_premature_start_codon_gain	Exon 4 of 6	ENSP00000457368.1	H3BTX3

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

152062

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000575

AC:

AN:

156470

AF XY:

0.0000844

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000275

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000661

Gnomad OTH exome

AF:

0.000456

GnomAD4 exome

AF:

0.000124

AC:

173

AN:

1399398

Hom.:

Cov.:

AF XY:

0.000109

AC XY:

AN XY:

690206

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31598

American (AMR)

AF:

0.00

AC:

AN:

35704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25182

East Asian (EAS)

AF:

0.0000560

AC:

AN:

35736

South Asian (SAS)

AF:

0.0000126

AC:

AN:

79236

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49276

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5698

European-Non Finnish (NFE)

AF:

0.000146

AC:

157

AN:

1078966

Other (OTH)

AF:

0.000224

AC:

AN:

58002

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.464

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:

0.0000394

AC:

AN:

152180

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74396

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41520

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000193

AC:

AN:

5172

South Asian (SAS)

AF:

0.000208

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10582

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

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:

0.0000823

Hom.:

Bravo

AF:

0.0000264

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000314

AC:

ExAC

AF:

0.0000810

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.069

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.58

CADD

Benign

(source)

DANN

Benign

0.77

DEOGEN2

Benign

0.0075

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.034

LIST_S2

Benign

0.64

M_CAP

Benign

0.0045

MetaRNN

Benign

0.012

MetaSVM

Benign

-0.97

MutationAssessor

Benign

-1.3

PhyloP100

-0.28

PrimateAI

Benign

0.18

PROVEAN

Benign

-2.3

REVEL

Benign

0.048

Sift

Benign

0.20

Sift4G

Uncertain

0.055

Polyphen

0.0

Vest4

0.054

MVP

0.030

MPC

0.053

ClinPred

0.018

GERP RS

-3.6

Varity_R

0.059

gMVP

0.13

Mutation Taster

=95/5

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over