9-133768519-G-C

Variant names:

• chr9-133768519-G-C
• rs756471330
• NM_001134398.2:c.2512C>G

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_001134398.2(VAV2):​c.2512C>G​(p.Arg838Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,776 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R838Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: VAV2 NM_001134398.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.13
• Publications: 0 publications found

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]

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.825

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VAV2	NM_001134398.2	c.2512C>G	p.Arg838Gly	missense_variant	Exon 29 of 30	ENST00000371850.8	NP_001127870.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
VAV2	ENST00000371850.8	c.2512C>G	p.Arg838Gly	missense_variant	Exon 29 of 30	1	NM_001134398.2	ENSP00000360916.3
VAV2	ENST00000406606.7	c.2395C>G	p.Arg799Gly	missense_variant	Exon 26 of 27	1		ENSP00000385362.3
VAV2	ENST00000371851.1	c.2482C>G	p.Arg828Gly	missense_variant	Exon 27 of 28	5		ENSP00000360917.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461776 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727196

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44714

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53338

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111996

Other (OTH) AF: 0.00 AC: 0 AN: 60390

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.22
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Uncertain	0.0
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.21	.;T;.
Eigen	Uncertain	0.47
Eigen_PC	Uncertain	0.43
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Uncertain	0.94	D;D;D
M_CAP	Benign	0.067	D
MetaRNN	Pathogenic	0.82	D;D;D
MetaSVM	Benign	-1.2	T
MutationAssessor	Uncertain	2.1	.;M;.
PhyloP100		3.1
PrimateAI	Uncertain	0.76	T
PROVEAN	Uncertain	-3.0	D;D;D
REVEL	Benign	0.27
Sift	Benign	0.082	T;T;T
Sift4G	Benign	0.096	T;T;T
Polyphen		0.94	P;D;.
Vest4		0.86
MutPred		0.58		.;Loss of stability (P = 0.0277);.;
MVP		0.57
MPC		1.1
ClinPred		0.97	D
GERP RS		5.0
Varity_R		0.28
gMVP		0.73
Mutation Taster		=16/84	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.14		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs756471330; hg19: chr9-136633641;