2-98115726-G-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_144992.5(VWA3B):​c.271G>A​(p.Glu91Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00023 in 1,613,210 control chromosomes in the GnomAD database, including 1 homozygotes. 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 Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00028 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00022 ( 1 hom. )

Consequence

VWA3B
NM_144992.5 missense

Scores

2
17

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 4.09
Variant links:
Genes affected
VWA3B (HGNC:28385): (von Willebrand factor A domain containing 3B) This gene encodes an intracellular protein that contains a von Willebrand factor type A domain. Intracellular proteins with VWA domains are thought to function in transcription, DNA repair, ribosomal and membrane transport and the proteasome. Mutations in this gene are associated with Spinocerebellar ataxia, autosomal recessive 22. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, May 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0127236545).
BP6
Variant 2-98115726-G-A is Benign according to our data. Variant chr2-98115726-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3057038.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
VWA3BNM_144992.5 linkuse as main transcriptc.271G>A p.Glu91Lys missense_variant 3/28 ENST00000477737.6 NP_659429.4 Q502W6-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
VWA3BENST00000477737.6 linkuse as main transcriptc.271G>A p.Glu91Lys missense_variant 3/281 NM_144992.5 ENSP00000417955.1 Q502W6-1

Frequencies

GnomAD3 genomes
AF:
0.000283
AC:
43
AN:
152198
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
Gnomad ASJ
AF:
0.00519
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000220
Gnomad OTH
AF:
0.000955
GnomAD3 exomes
AF:
0.000414
AC:
103
AN:
248900
Hom.:
0
AF XY:
0.000385
AC XY:
52
AN XY:
135106
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000203
Gnomad ASJ exome
AF:
0.00636
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000265
Gnomad OTH exome
AF:
0.000330
GnomAD4 exome
AF:
0.000225
AC:
328
AN:
1461012
Hom.:
1
Cov.:
30
AF XY:
0.000215
AC XY:
156
AN XY:
726896
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000201
Gnomad4 ASJ exome
AF:
0.00616
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000106
Gnomad4 OTH exome
AF:
0.000546
GnomAD4 genome
AF:
0.000283
AC:
43
AN:
152198
Hom.:
0
Cov.:
32
AF XY:
0.000296
AC XY:
22
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000458
Gnomad4 ASJ
AF:
0.00519
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000220
Gnomad4 OTH
AF:
0.000955
Alfa
AF:
0.000648
Hom.:
0
Bravo
AF:
0.000227
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000705
AC:
6
ExAC
AF:
0.000363
AC:
44
EpiCase
AF:
0.000491
EpiControl
AF:
0.000119

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

VWA3B-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMar 06, 2020This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
22
DANN
Benign
0.93
DEOGEN2
Benign
0.0013
T
Eigen
Benign
-0.14
Eigen_PC
Benign
-0.033
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.0084
T
MetaRNN
Benign
0.013
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.91
L
PrimateAI
Benign
0.34
T
PROVEAN
Benign
-1.2
N
REVEL
Benign
0.086
Sift
Benign
0.59
T
Sift4G
Benign
0.22
T
Polyphen
0.71
P
Vest4
0.47
MVP
0.16
MPC
0.11
ClinPred
0.042
T
GERP RS
4.6
Varity_R
0.22
gMVP
0.22

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.12
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.

Other links and lift over

dbSNP: rs199632420; hg19: chr2-98732189; API