7-49776030-T-A

Position:

• chr7-49776030-T-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_198570.5(VWC2):​c.595T>A​(p.Cys199Ser) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: VWC2 NM_198570.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.05

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
VWC2	NM_198570.5	c.595T>A	p.Cys199Ser	missense_variant	2/4	ENST00000340652.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
VWC2	ENST00000340652.5	c.595T>A	p.Cys199Ser	missense_variant	2/4	1	NM_198570.5	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 33

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

Dec 15, 2022

The c.595T>A (p.C199S) alteration is located in exon 2 (coding exon 1) of the VWC2 gene. This alteration results from a T to A substitution at nucleotide position 595, causing the cysteine (C) at amino acid position 199 to be replaced by a serine (S). 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	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.18	D
BayesDel_noAF	Uncertain	0.030
CADD	Pathogenic	28
DANN	Uncertain	0.99
DEOGEN2	Benign	0.069	T
Eigen	Uncertain	0.40
Eigen_PC	Uncertain	0.43
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.88	D
M_CAP	Benign	0.031	D
MetaRNN	Uncertain	0.72	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	2.0	M
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.83	D
PROVEAN	Pathogenic	-6.3	D
REVEL	Uncertain	0.39
Sift	Benign	0.20	T
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.70
MutPred		0.28		Loss of stability (P = 0.0425);
MVP		0.39
MPC		1.8
ClinPred		0.99	D
GERP RS		5.0
Varity_R		0.61
gMVP		0.92

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: chr7-49815626;