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GENE AND PROTEIN SUMMARY

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Gene name

DUSP8

Description

dual specificity phosphatase 8

Protein class

Enzymes, Mapped to UniProt SWISS-PROT

Protein evidence

Only RNA

Entrez gene summary

The protein encoded by this gene is a member of the dual specificity protein phosphatase subfamily. These phosphatases inactivate their target kinases by dephosphorylating both the phosphoserine/threonine and phosphotyrosine residues. They negatively regulate members of the mitogen-activated protein (MAP) kinase superfamily (MAPK/ERK, SAPK/JNK, p38), which is associated with cellular proliferation and differentiation. Different members of the family of dual specificity phosphatases show distinct substrate specificities for various MAP kinases, different tissue distribution and subcellular localization, and different modes of inducibility of their expression by extracellular stimuli. This gene product inactivates SAPK/JNK and p38, is expressed predominantly in the adult brain, heart, and skeletal muscle, is localized in the cytoplasm, and is induced by nerve growth factor and insulin. An intronless pseudogene for DUSP8 is present on chromosome 10q11.2. [provided by RefSeq, Jul 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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Main location(s)

Cytoplasm

Additional location(s)

 

Staining summary

Granular staining of cytoplasm in all three cell lines.

Reliability (Single)

Antibodies in assay

HPA020071
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

Glial cells displayed strong cytoplasmic immunoreactivity, while endothelial cells were distinctly stained. Cells of the male genital tract showed moderate immunoreactivity. Most other normal tissues were negative.

Tissue specificity

Staining in 36 out of 81 cell types

Reliability (Single)

Antibodies in assay

HPA020071
 

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 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 15
Endocrine tissues 3

Level of antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 28% of the cancers

Antibodies in assay

HPA020071
 

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

 

HPA020071

A-431 Skin Medium

-

Weak
A-549 Lung Low

-

CACO-2 Colon Medium

-

HEK 293 Embryonal kidney Medium

-

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 Medium

-

Moderate
U-251 MG Brain Low

-

Moderate

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA020071 pAb