Structural and spectroscopic characterization of P450 BM3 mutants with unprecedented P450 heme iron ligand sets. New heme ligation states influence conformational equilibria in P450 BM3.
Girvan, H.M., Seward, H.E., Toogood, H.S., Cheesman, M.R., Leys, D., Munro, A.W.(2007) J Biol Chem 282: 564-572
- PubMed: 17077084 
- DOI: 10.1074/jbc.M607949200
- Primary Citation of Related Structures:  
2IJ2, 2IJ3, 2IJ4 - PubMed Abstract: 
Two novel P450 heme iron ligand sets were generated by directed mutagenesis of the flavocytochrome P450 BM3 heme domain. The A264H and A264K variants produce Cys-Fe-His and Cys-Fe-Lys axial ligand sets, which were validated structurally and characterized by spectroscopic analysis ...