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GENE AND PROTEIN SUMMARY

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Gene name

PAK4

Description

p21 protein (Cdc42/Rac)-activated kinase 4

Protein class

Enzymes, Kinases, Mapped to UniProt SWISS-PROT, Potential transmembrane proteins

Protein evidence

Medium

Entrez gene summary

PAK proteins, a family of serine/threonine p21-activating kinases, include PAK1, PAK2, PAK3 and PAK4. PAK proteins are critical effectors that link Rho GTPases to cytoskeleton reorganization and nuclear signaling. They serve as targets for the small GTP binding proteins Cdc42 and Rac and have been implicated in a wide range of biological activities. PAK4 interacts specifically with the GTP-bound form of Cdc42Hs and weakly activates the JNK family of MAP kinases. PAK4 is a mediator of filopodia formation and may play a role in the reorganization of the actin cytoskeleton. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

4 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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Show image »

Staining summary

Most normal tissues displayed weak to moderate cytoplasmic and/or nuclear positivity. Strong cytoplasmic staining was seen in breast, urothelium and seminal vesicle while bone marrow poietic cells showed strong nuclear immunoreactivity.

Tissue specificity

Staining in 73 out of 81 cell types

Reliability (Single)

Antibodies in assay

CAB025747
 

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 13
Placenta 2
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 84% of the cancers

Antibodies in assay

CAB025747
 

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

High
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

CAB025747

 

A-431 Skin High

-

A-549 Lung High

-

CACO-2 Colon High

-

HEK 293 Embryonal kidney Medium

-

HeLa Cervix Medium

-

Hep-G2 Liver Medium

-

MCF-7 Pleural effusion High

-

PC-3 Bone marrow Medium

-

RT-4 Urinary bladder High

-

U-2 OS Bone High

-

U-251 MG Brain High

-

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB025747 msAb