chr6-31767730-C-T

Position:

• chr6-31767730-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_025258.3(VWA7):​c.1528G>A​(p.Val510Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,458,732 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: VWA7 NM_025258.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.0350

Genes affected

VWA7 (HGNC:13939): (von Willebrand factor A domain containing 7) Predicted to be located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.04813975).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
VWA7	NM_025258.3	c.1528G>A	p.Val510Ile	missense_variant	11/17	ENST00000375688.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
VWA7	ENST00000375688.5	c.1528G>A	p.Val510Ile	missense_variant	11/17	5	NM_025258.3	P1
VWA7	ENST00000467576.1	n.1391G>A		non_coding_transcript_exon_variant	11/15	2
VWA7	ENST00000486423.5			upstream_gene_variant		5

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1458732 Hom.: 0 Cov.: 32 AF XY: 0.00000276 AC XY: 2 AN XY: 724898

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000253

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.01e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 30

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 23, 2023

The c.1528G>A (p.V510I) alteration is located in exon 11 (coding exon 10) of the VWA7 gene. This alteration results from a G to A substitution at nucleotide position 1528, causing the valine (V) at amino acid position 510 to be replaced by an isoleucine (I). 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	0.079
BayesDel_addAF	Benign	-0.37	T
BayesDel_noAF	Benign	-0.77
CADD	Benign	3.0
DANN	Benign	0.82
DEOGEN2	Benign	0.0049	T
Eigen	Benign	-1.7
Eigen_PC	Benign	-1.7
FATHMM_MKL	Benign	0.022	N
M_CAP	Benign	0.0033	T
MetaRNN	Benign	0.048	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	2.0	M
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Benign	0.29	T
PROVEAN	Benign	-0.22	N
REVEL	Benign	0.015
Sift	Benign	0.48	T
Sift4G	Benign	0.69	T
Polyphen		0.0	B
Vest4		0.038
MutPred		0.46		Loss of catalytic residue at V510 (P = 0.0056);
MVP		0.088
MPC		0.24
ClinPred		0.048	T
GERP RS		-1.1
Varity_R		0.016
gMVP		0.092

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-31735507;