Genetic Variant VASH2:p.Ile229Thr (chr1-212972768-T-C) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001301056.2(VASH2):c.686T>C(p.Ile229Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,614,072 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I229V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

VASH2
NM_001301056.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.85

Variant links:

Genes affected

VASH2 (HGNC:25723): (vasohibin 2) Enables actin binding activity; metallocarboxypeptidase activity; and microtubule binding activity. Involved in axon development and proteolysis. Acts upstream of or within cell-cell fusion; positive regulation of angiogenesis; and positive regulation of endothelial cell proliferation. Located in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

VASH2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.755

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VASH2	NM_001301056.2 link	c.686T>C	p.Ile229Thr	missense_variant	Exon 6 of 8	ENST00000517399.3	NP_001287985.1	Q86V25-1A8K4K8
VASH2	NM_024749.5 link	c.554T>C	p.Ile185Thr	missense_variant	Exon 4 of 6		NP_079025.2	Q86V25-5A8K4K8
VASH2	NM_001136474.3 link	c.491T>C	p.Ile164Thr	missense_variant	Exon 7 of 9		NP_001129946.1	Q86V25-2A0A140VJZ5A8K4K8
VASH2	NM_001136475.3 link	c.374T>C	p.Ile125Thr	missense_variant	Exon 5 of 7		NP_001129947.1	Q86V25-6A8K4K8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
VASH2	ENST00000517399.3 link	c.686T>C	p.Ile229Thr	missense_variant	Exon 6 of 8	1	NM_001301056.2	ENSP00000428324.1		Q86V25-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251340

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135832

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000578

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000894

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152182

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74350

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 02, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.554T>C (p.I185T) alteration is located in exon 4 (coding exon 3) of the VASH2 gene. This alteration results from a T to C substitution at nucleotide position 554, causing the isoleucine (I) at amino acid position 185 to be replaced by a threonine (T). 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

0.78

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Pathogenic

0.14

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.43

.;.;.;.;T

Eigen

Uncertain

0.30

Eigen_PC

Uncertain

0.42

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.94

.;D;D;D;D

M_CAP

Benign

0.013

MetaRNN

Pathogenic

0.75

D;D;D;D;D

MetaSVM

Benign

-0.63

MutationAssessor

Benign

1.9

.;.;.;.;L

PrimateAI

Uncertain

0.59

PROVEAN

Uncertain

-3.2

D;D;D;D;D

REVEL

Uncertain

0.29

Sift

Uncertain

0.0020

D;D;D;D;D

Sift4G

Uncertain

0.0060

D;D;D;D;D

Polyphen

0.45, 0.28

.;.;B;.;B

Vest4

0.88

MutPred

0.55

.;.;.;.;Loss of stability (P = 0.0019);

MVP

0.42

MPC

0.46

ClinPred

0.64

GERP RS

5.3

Varity_R

0.61

gMVP

0.63

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over