1-1437061-G-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_StrongBP6_ModerateBS1

The NM_022834.5(VWA1):​c.208G>T​(p.Ala70Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000301 in 1,610,358 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A70D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0015 ( 1 hom., cov: 33)
Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

VWA1
NM_022834.5 missense

Scores

1
3
10

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 4.02
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.008526266).
BP6
Variant 1-1437061-G-T is Benign according to our data. Variant chr1-1437061-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 722916.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00148 (225/152356) while in subpopulation AFR AF= 0.0051 (212/41590). AF 95% confidence interval is 0.00454. There are 1 homozygotes in gnomad4. There are 102 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
VWA1NM_022834.5 linkuse as main transcriptc.208G>T p.Ala70Ser missense_variant 2/3 ENST00000476993.2
VWA1NM_199121.3 linkuse as main transcriptc.74-261G>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
VWA1ENST00000476993.2 linkuse as main transcriptc.208G>T p.Ala70Ser missense_variant 2/31 NM_022834.5 P1Q6PCB0-1
VWA1ENST00000495558.1 linkuse as main transcriptc.103G>T p.Ala35Ser missense_variant 2/22
VWA1ENST00000471398.1 linkuse as main transcriptc.328G>T p.Ala110Ser missense_variant 2/23
VWA1ENST00000338660.5 linkuse as main transcriptc.74-261G>T intron_variant 2 Q6PCB0-3

Frequencies

GnomAD3 genomes
AF:
0.00148
AC:
225
AN:
152238
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00511
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000589
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:
0.00144
GnomAD3 exomes
AF:
0.000378
AC:
93
AN:
246004
Hom.:
1
AF XY:
0.000194
AC XY:
26
AN XY:
133682
show subpopulations
Gnomad AFR exome
AF:
0.00513
Gnomad AMR exome
AF:
0.000293
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:
0.00000908
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000178
AC:
259
AN:
1458002
Hom.:
0
Cov.:
31
AF XY:
0.000138
AC XY:
100
AN XY:
725016
show subpopulations
Gnomad4 AFR exome
AF:
0.00655
Gnomad4 AMR exome
AF:
0.000383
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.000349
GnomAD4 genome
AF:
0.00148
AC:
225
AN:
152356
Hom.:
1
Cov.:
33
AF XY:
0.00137
AC XY:
102
AN XY:
74494
show subpopulations
Gnomad4 AFR
AF:
0.00510
Gnomad4 AMR
AF:
0.000588
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:
0.00142
Alfa
AF:
0.000542
Hom.:
0
Bravo
AF:
0.00178
ESP6500AA
AF:
0.00523
AC:
23
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000446
AC:
54

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJan 25, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.078
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.19
CADD
Benign
21
DANN
Benign
0.86
Eigen
Benign
-0.14
Eigen_PC
Benign
0.011
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.68
T;T;T
M_CAP
Pathogenic
0.35
D
MetaRNN
Benign
0.0085
T;T;T
MetaSVM
Uncertain
0.32
D
MutationTaster
Benign
1.0
D;D;N
PrimateAI
Uncertain
0.78
T
Sift4G
Benign
0.91
T;T;T
Polyphen
0.27
.;B;.
Vest4
0.18
MVP
0.92
MPC
0.071
ClinPred
0.023
T
GERP RS
3.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.090
gMVP
0.37

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.

Other links and lift over

dbSNP: rs144569033; hg19: chr1-1372441; API