Product Name :
Peroxiredoxin II, Human
Product Type :
Protein
Lot No :
UMA 08
Reactivity :
Human
Storage :
Shipped at 4°C. Store at -20°C. After reconstitution, store at -80°C and avoid frequent freeze and thaw.
Composition :
Lyophilized from 20mM HEPES, pH 7.5
Source :
Purified from E.coli expressing the human Peroxiredoxin II gene (1-198aa)
Molecular Weight :
22 kDa
Specific activity :
9.01u/mg (One unit will cause the oxidation of 1.0 μmole of NADPH at 25°C at pH 7.5)
Endotoxin activity :
Not tested
Form :
Lyophilized
Purity :
> 95% by SDS-PAGE
Expression system :
E.coli
Tag :
None
Origin :
Human
Background :
Peroxiredoxin (Prx) is a growing peroxidase family, whose mammalian members have been known to connect with cell proliferation, differentiation, and apoptosis. Many isoforms (about 50 proteins), collected in accordance to the amino acid sequence homology, particularly amino-terminal region containing active site cysteine residue, and the thiol-specific antioxidant activity, distribute throughout all the kingdoms. Among them, mammalian Prx consists of 6 different members grouped into typical 2-Cys, atypical 2-Cys Prx, and 1-Cys Prx. Except Prx VI belonging to 1-Cys Prx subgroup, the other five 2-Cys Prx isotypes have the thioredoxin-dependent peroxidase (TPx) activity utilizing thioredoxin, thioredoxin reductase, and NADPH as a reducing system. Mammalian Prxs are 20 - 30 kilodalton in molecular size and vary in subcellular localization: Prx I, II, and VI in cytosol, Prx III in mitochondria, Prx IV in ER and secretion, Prx V showing complicated distribution including peroxisome, mitochondria and cytosol (1).
Background reference :
1) Wood, Z. A. et al. (2003) Trends Biochem Sci. 28(1):32-40.
Research area :
ROS Signaling 
Database link - SwissProt no.
P32119

The test was performed by customers with their own sample.