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GENE AND PROTEIN SUMMARY

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Gene name

NOX4

Description

NADPH oxidase 4

Protein class

Mapped to UniProt SWISS-PROT, Potential transmembrane proteins, Potentially secreted proteins, Transporters

Protein evidence

Medium

Entrez gene summary

This gene encodes a member of the NOX-family of enzymes that functions as the catalytic subunit the NADPH oxidase complex. The encoded protein is localized to non-phagocytic cells where it acts as an oxygen sensor and catalyzes the reduction of molecular oxygen to various reactive oxygen species (ROS). The ROS generated by this protein have been implicated in numerous biological functions including signal transduction, cell differentiation and tumor cell growth. A pseudogene has been identified on the other arm of chromosome 11. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Jan 2009]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

16 in total
16 with predicted TM region
1 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Additional location(s)

 

Staining summary

No staining was observed in any of the three cell lines.

Reliability (Single)

Antibodies in assay

HPA015475
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

Most of the normal tissues displayed weak to moderate nuclear positivity which was occasionally accompanied with cytoplasmic immunoreactivity. Skeletal muscle cells and the thyroid gland revealed strong cytoplasmic staining while strong nuclear positivity was observed in adrenal cortical cells and in glandular cells of the intestine.

Tissue specificity

Staining in 60 out of 81 cell types

Reliability (Single)

Antibodies in assay

HPA015475
 

Organ

No of cell types

Antibody staining

CNS (brain) 11
Hematopoietic (blood) 7
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 antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 30% of the cancers

Antibodies in assay

HPA015475
 

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

Low
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

HPA015475

HPA015475

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA015475 pAb