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GENE AND PROTEIN SUMMARY

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Gene name

ASAP2

Description

ArfGAP with SH3 domain, ankyrin repeat and PH domain 2

Protein class

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

Protein evidence

Medium

Entrez gene summary

This gene encodes a multidomain protein containing an N-terminal alpha-helical region with a coiled-coil motif, followed by a pleckstrin homology (PH) domain, an Arf-GAP domain, an ankyrin homology region, a proline-rich region, and a C-terminal Src homology 3 (SH3) domain. The protein localizes in the Golgi apparatus and at the plasma membrane, where it colocalizes with protein tyrosine kinase 2-beta (PYK2). The encoded protein forms a stable complex with PYK2 in vivo. This interaction appears to be mediated by binding of its SH3 domain to the C-terminal proline-rich domain of PYK2. The encoded protein is tyrosine phosphorylated by activated PYK2. It has catalytic activity for class I and II ArfGAPs in vitro, and can bind the class III Arf ARF6 without immediate GAP activity. The encoded protein is believed to function as an ARF GAP that controls ARF-mediated vesicle budding when recruited to Golgi membranes. In addition, it functions as a substrate and downstream target for PYK2 and SRC, a pathway that may be involved in the regulation of vesicular transport. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Pending subcellular analysis

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

Most normal tissues showed moderate to strong cytoplasmic staining combined with a few cases of nuclear positivity. Hepatocytes, mesenchymal cells and myocytes were weakly stained or negative.

Tissue specificity

Staining in 74 out of 78 cell types

Reliability (Single)

Antibodies in assay

CAB018615
 

Organ

No of cell types

Antibody staining

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

Level of antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 89% of the cancers

Antibodies in assay

CAB018615
 

Tissue

Cancer staining

Normal tissue
staining

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

Tissue

Cancer staining

Normal tissue
staining

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

CAB018615

 

A-431 Skin Medium

-

A-549 Lung Medium

-

CACO-2 Colon Medium

-

HEK 293 Embryonal kidney Medium

-

HeLa Cervix Medium

-

Hep-G2 Liver Medium

-

MCF-7 Pleural effusion Medium

-

PC-3 Bone marrow Medium

-

RT-4 Urinary bladder Medium

-

U-2 OS Bone Low

-

U-251 MG Brain Medium

-

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB018615 pAb