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GENE AND PROTEIN SUMMARY

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Gene name

VAV3

Description

vav 3 guanine nucleotide exchange factor

Protein class

Mapped to UniProt SWISS-PROT, SH2-domain containing proteins, SH3-domain containing proteins

Protein evidence

Medium

Entrez gene summary

This gene is a member of the VAV gene family. The VAV proteins are guanine nucleotide exchange factors (GEFs) for Rho family GTPases that activate pathways leading to actin cytoskeletal rearrangements and transcriptional alterations. This gene product acts as a GEF preferentially for RhoG, RhoA, and to a lesser extent, RAC1, and it associates maximally with the nucleotide-free states of these GTPases. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

9 in total
0 with predicted TM region
0 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Centrosome

Additional location(s)

Cytoplasm 

Staining summary

Staining of centrosome in all three cell lines with additional staining of cytoplasm in U-251 MG and A-431.

Reliability (Single)

Antibodies in assay

HPA028138
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Nuclear and cytoplasmic expression at variable levels in most tissues.

Tissue specificity

Expressed in 68 out of 82 cell types

Reliability (APE)

Low

Antibodies in assay

CAB002012, HPA028138
 

Organ

No of cell types

Protein expression

CNS (brain) 11
Hematopoietic (blood) 8
Liver and pancreas 5
Digestive (GI-tract) 13
Respiratory (lung) 4
Cardiovascular 1
Female tissues 13
Placenta 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 14
Endocrine tissues 3

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 44% of the cancers

Antibodies in assay

CAB002012, HPA028138
 

Tissue

Cancer staining

Protein
expression of
normal tissue

Breast cancer
 
Carcinoid
 
Cervical cancer
 
 
Colorectal cancer
 
 
Endometrial cancer
 
 
Glioma
 
Head and neck cancer
 
 
Liver cancer
 
 
Lung cancer
 
 
Lymphoma
 
 
 

Tissue

Cancer staining

Protein
expression of
normal tissue

Melanoma
 
Ovarian cancer
 
Pancreatic cancer
 
Prostate cancer
 
Renal cancer
 
Skin cancer
 
Stomach cancer
 
 
Testis cancer
 
Thyroid cancer
 
Urothelial cancer
 

Level of antibody staining





Strong
Moderate
Weak
Negative

CELL LINE SUMMARY

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RNA evidence

High
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

CAB002012

HPA028138

HPA028138

A-431 Skin Not detected
Moderate
A-549 Lung Medium
CACO-2 Colon Low
HEK 293 Embryonal kidney Medium
HeLa Cervix Medium
Hep-G2 Liver Medium
MCF-7 Pleural effusion Medium
PC-3 Bone marrow Low
RT-4 Urinary bladder High
U-2 OS Bone Not detected
Strong
U-251 MG Brain Low
Weak

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB002012 pAb
HPA028138 pAb