Oxygen Activation and Electron Transfer in Flavocytochrome P450 BM3
Ost, T.W.B., Clark, J., Mowat, C.G., Miles, C.S., Walkinshaw, M.D., Reid, G.A., Chapman, S.K., Daff, S.(2003) J Am Chem Soc 125: 15010-15020
- PubMed: 14653735 
- DOI: 10.1021/ja035731o
- Primary Citation of Related Structures:  
1P0V, 1P0W, 1P0X - PubMed Abstract: 
In flavocytochrome P450 BM3, there is a conserved phenylalanine residue at position 393 (Phe393), close to Cys400, the thiolate ligand to the heme. Substitution of Phe393 by Ala, His, Tyr, and Trp has allowed us to modulate the reduction potential of the heme, while retaining the structural integrity of the enzyme's active site ...