Abstract
Three-dimensional protein structures of the xanthine oxidase family show different solutions for the problem of transferring electrons between the flavin adenine dinucleotide (FAD) group and the molybdenum cofactor. In xanthine oxidase all the cofactors lie within domains of the same protein chain, whereas in CO dehydrogenase the Fe-S centres, FAD and Mo cofactors are enclosed in separate chains and the enzyme exists as a stable complex of all three. In aldehyde oxidoreductase, only Fe-S and Mo co-factors are present in a single protein chain. Flavodoxin is docked to aldehyde oxidoreductase to mimic the flavin component on the intramolecular electron transfer chain of aanthine oxidase and CO dehydrogenase and, remarkably, the main features of the electrontransfer pathway are observed.
Original language | English |
---|---|
Pages (from-to) | 3835-3840 |
Number of pages | 6 |
Journal | European Journal of Inorganic Chemistry |
Issue number | 19 |
DOIs | |
Publication status | Published - 2 Oct 2006 |
Keywords
- Bioinorganic chemistry
- Electron transfer
- Enzyme models
- Molybdenum