Genetic Variant VAV2:p.Ile849Val (chr9-133768486-T-C) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001134398.2(VAV2):c.2545A>G(p.Ile849Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000821 in 1,461,700 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

VAV2
NM_001134398.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.14

Publications

0 publications found

Variant links:

Genes affected

VAV2 (HGNC:12658): (vav guanine nucleotide exchange factor 2) VAV2 is the second member of the VAV guanine nucleotide exchange factor family of oncogenes. Unlike VAV1, which is expressed exclusively in hematopoietic cells, VAV2 transcripts were found in most tissues. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2008]

VAV2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.11576849).

BS2

High AC in GnomAdExome4 at 12 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VAV2	NM_001134398.2 link	c.2545A>G	p.Ile849Val	missense_variant	Exon 29 of 30	ENST00000371850.8	NP_001127870.1	P52735-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
VAV2	ENST00000371850.8 link	c.2545A>G	p.Ile849Val	missense_variant	Exon 29 of 30	1	NM_001134398.2	ENSP00000360916.3	P52735-1
VAV2	ENST00000406606.7 link	c.2428A>G	p.Ile810Val	missense_variant	Exon 26 of 27	1		ENSP00000385362.3	P52735-3
VAV2	ENST00000371851.1 link	c.2515A>G	p.Ile839Val	missense_variant	Exon 27 of 28	5		ENSP00000360917.1	P52735-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000279

AC:

AN:

251250

AF XY:

0.0000294

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000381

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000821

AC:

AN:

1461700

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727170

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.000227

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53256

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111998

Other (OTH)

AF:

0.0000331

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 06, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.2545A>G (p.I849V) alteration is located in exon 29 (coding exon 29) of the VAV2 gene. This alteration results from a A to G substitution at nucleotide position 2545, causing the isoleucine (I) at amino acid position 849 to be replaced by a valine (V). 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

0.078

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.58

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Benign

0.035

.;T;.

Eigen

Benign

-0.32

Eigen_PC

Benign

-0.23

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.79

T;T;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.12

T;T;T

MetaSVM

Benign

-0.92

MutationAssessor

Benign

-0.070

.;N;.

PhyloP100

4.1

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.040

N;N;N

REVEL

Benign

0.20

Sift

Benign

0.55

T;T;T

Sift4G

Benign

0.37

T;T;T

Polyphen

0.36

B;D;.

Vest4

0.33

MutPred

0.39

.;Loss of stability (P = 0.0803);.;

MVP

0.40

MPC

0.27

ClinPred

0.16

GERP RS

2.5

Varity_R

0.025

gMVP

0.17

Mutation Taster

=77/23

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

9-133768486-T-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over