chr7-49775632-C-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_198570.5(VWC2):​c.197C>A​(p.Ala66Glu) variant causes a missense change. The variant allele was found at a frequency of 0.0000072 in 1,528,600 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000073 ( 0 hom. )

Consequence

VWC2
NM_198570.5 missense

Scores

1
1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.36
Variant links:
Genes affected
VWC2 (HGNC:30200): (von Willebrand factor C domain containing 2) This gene encodes a secreted bone morphogenic protein antagonist. The encoded protein is possibly involved in neural function and development and may have a role in cell adhesion.[provided by RefSeq, Oct 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.08975181).
BS2
High AC in GnomAdExome4 at 10 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
VWC2NM_198570.5 linkuse as main transcriptc.197C>A p.Ala66Glu missense_variant 2/4 ENST00000340652.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
VWC2ENST00000340652.5 linkuse as main transcriptc.197C>A p.Ala66Glu missense_variant 2/41 NM_198570.5 P1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152084
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000418
AC:
5
AN:
119758
Hom.:
0
AF XY:
0.0000607
AC XY:
4
AN XY:
65914
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000130
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:
0.0000466
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000726
AC:
10
AN:
1376516
Hom.:
0
Cov.:
44
AF XY:
0.00000884
AC XY:
6
AN XY:
678844
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000868
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:
0.00000652
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152084
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74300
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000673
Hom.:
0
Bravo
AF:
0.00000378

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 submitterclinical testingAmbry GeneticsSep 01, 2021The c.197C>A (p.A66E) alteration is located in exon 2 (coding exon 1) of the VWC2 gene. This alteration results from a C to A substitution at nucleotide position 197, causing the alanine (A) at amino acid position 66 to be replaced by a glutamic acid (E). 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
0.14
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
21
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0022
T
Eigen
Benign
-0.39
Eigen_PC
Benign
-0.23
FATHMM_MKL
Benign
0.64
D
LIST_S2
Benign
0.67
T
M_CAP
Benign
0.049
D
MetaRNN
Benign
0.090
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
N
MutationTaster
Benign
1.0
N
PrimateAI
Pathogenic
0.89
D
PROVEAN
Benign
-0.17
N
REVEL
Benign
0.067
Sift
Benign
0.24
T
Sift4G
Benign
0.34
T
Polyphen
0.0
B
Vest4
0.12
MutPred
0.24
Loss of MoRF binding (P = 0.0161);
MVP
0.043
MPC
1.1
ClinPred
0.13
T
GERP RS
2.9
Varity_R
0.12
gMVP
0.43

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: rs1488280722; hg19: chr7-49815228; API