Deutsches Krebsforschungszentrum 
German Cancer Resarch CenterLOX-DB - LipOXygenases DataBase
Lipoxygenases...
What are Lipoxygenases?
Lipoxygenases and
cancer research
Database...
Search
Display all entries
Alignments
Sequence Comparison
Blast Search
Search Literature
Search Literature (adv.)
Misc...
Image Gallery
Links
Forum
Contact
Guestbook
Home

LOX-DB - Literature


Three-dimensional structure of a purple lipoxygenase.

Skrzypczak-Jankun E., Bross R.A., Carroll R.T., Dunham W.R., Funk M.O. Jr.

J. Am. Chem. Soc. 123:10814-10820 123: 10814-10820 (2001)

Abstract:

Polyunsaturated fatty acid metabolism is governed primarily by two enzymes, prostaglandin H synthase and lipoxygenase. The crystal structure of the metastable product-oxidized purple form of soybean lipoxygenase-3 was determined at 2.0 A resolution. The data reveal that the chromophore corresponds to an iron-peroxide complex, a potential intermediate in the catalyzed reaction. A significant alteration of the iron site accompanies the formation of the complex. The structure, the first for a fatty acid-lipoxygenase complex, also reveals an unexpected mode of binding, and identifies amino acid residues that may play significant roles in catalysis, regio- and stereoselectivity.

LOX-DB entries related to this article: gm-lox-3