Science Fair Projects Ideas - Glutathione peroxidase

All Science Fair Projects

 		      

Science Fair Project Encyclopedia for Schools!
  Search    Browse    Forum  Coach    Links    Editor    Help    Tell-a-Friend    Encyclopedia    Dictionary     

Science Fair Project Encyclopedia

For information on any area of science that interests you,
enter a keyword (eg. scientific method, molecule, cloud, carbohydrate etc.).
Or else, you can start by choosing any of the categories below.

Science Fair Project Encyclopedia Contents Page

Glutathione peroxidase

The enzyme glutathione peroxidase ( PDB 1GP1, EC 1.11.1.9) is a peroxidase found in the erythrocytes of mammals, which helps prevent lipid peroxidation of cell membranes by consuming free peroxide in the cell. The summary reaction the enzyme catalyzes is:

2GSH + H2O2 → GSSG + 2H2O

Where GSH represents reduced monomeric glutathione, and GSSG represents oxidized glutathione. Glutathione reductase then reduces the oxidized glutathione to complete the cycle:

GSSG + NADPH + H+ → 2 GSH + NADP+

Glutathione peroxidase is a tetramer, and the bovine erythrocyte enzyme has a molecular weight of 84,000. It is a selenium containing enzyme with 4 selenocysteine amino acid residues that participate in the actual mechanism of this enzyme.

See also

  • Glutathione reductase
Science Fair Project Encyclopedia Contents Page
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
Science kits, science lessons, science toys, maths toys, hobby kits, science games and books - these are some of many products that can help give your kid an edge in their science fair projects, and develop a tremendous interest in the study of science. When shopping for a science kit or other supplies, make sure that you carefully review the features and quality of the products. Compare prices by going to several online stores. Read product reviews online or refer to magazines.

Start by looking for your science kit review or science toy review. Compare prices but remember, Price $ is not everything. Quality does matter.
Science Fair Coach
What do science fair judges look out for?
ScienceHound
Science Fair Projects for students of all ages
All Science Fair Projects.com Site
All Science Fair Projects Homepage
Search | Browse | Links | From-our-Editor | Books | Help | Contact | Privacy | Disclaimer | Copyright Notice