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GENE AND PROTEIN SUMMARY

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Gene name

GPX1

Description

glutathione peroxidase 1

Protein class

Candidate cancer biomarkers, Enzymes, Mapped to UniProt SWISS-PROT, Plasma proteins, Potentially secreted proteins

Protein evidence

Medium

Entrez gene summary

This gene encodes a member of the glutathione peroxidase family. Glutathione peroxidase functions in the detoxification of hydrogen peroxide, and is one of the most important antioxidant enzymes in humans. This protein is one of only a few proteins known in higher vertebrates to contain selenocysteine, which occurs at the active site of glutathione peroxidase and is coded by UGA, that normally functions as a translation termination codon. In addition, this protein is characterized in a polyalanine sequence polymorphism in the N-terminal region, which includes three alleles with five, six or seven alanine (ALA) repeats in this sequence. The allele with five ALA repeats is significantly associated with breast cancer risk. Two 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

2 in total
0 with predicted TM region
0 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

CAB011582
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

Strong immunoreactivity was observed in monocyte derived cells and leydig cells as well as subsets of neurons and cells in seminiferous ducts. Epididymis and renal tubules displayed moderate positivity. Most normal tissues showed weak cytoplasmic staining or were negative.

Tissue specificity

Staining in 32 out of 79 cell types

Reliability (Single)

Antibodies in assay

CAB011582
 

Organ

No of cell types

Antibody staining

CNS (brain) 10
Hematopoietic (blood) 8
Liver and pancreas 5
Digestive (GI-tract) 13
Respiratory (lung) 4
Cardiovascular 1
Female tissues 12
Placenta 1
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 25% of the cancers

Antibodies in assay

CAB011582
 

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

CAB011582

CAB011582

A-431 Skin High
Negative
A-549 Lung High
CACO-2 Colon High
HEK 293 Embryonal kidney High
HeLa Cervix High
Hep-G2 Liver High
MCF-7 Pleural effusion Low
PC-3 Bone marrow High
RT-4 Urinary bladder High
U-2 OS Bone High
Negative
U-251 MG Brain High
Negative

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB011582 msAb