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GENE AND PROTEIN SUMMARY

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Gene name

ARHGAP4

Description

Rho GTPase activating protein 4

Protein class

Mapped to UniProt SWISS-PROT, Potential transmembrane proteins, SH3-domain containing proteins

Protein evidence

High

Entrez gene summary

This gene encodes a member of the rhoGAP family of proteins which play a role in the regulation of small GTP-binding proteins belonging to the RAS superfamily. The protein encoded by the orthologous gene in rat is localized to the Golgi complex and can redistribute to microtubules. The rat protein stimulates the activity of some Rho GTPases in vitro. Genomic deletions of this gene and a neighboring gene have been found in patients with nephrogenic diabetes insipidus. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Nucleus but not nucleoli, Cytoplasm, Focal Adhesions

Additional location(s)

 

Staining summary

Localized to focal adhesion sites, cytoplasm and nucleus.

Reliability (APE)

Medium

Antibodies in assay

HPA001012, HPA001083
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Selective cytoplasmic expression in lymphoid cells.

Tissue specificity

Expressed in 9 out of 82 cell types

Reliability (APE)

High

Antibodies in assay

HPA001012, HPA001083
 

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 39% of the cancers

Antibodies in assay

HPA001012, HPA001083
 

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

Medium
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

HPA001012

HPA001083

HPA001012

HPA001083

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA001012 pAb
HPA001083 pAb