Enzyme-Substrate Complementarity Governs Access to a Cationic Reaction Manifold in the P450<sub>BM3</sub>-Catalysed Oxidation of Cyclopropyl Fatty Acids
作者:Max J. Cryle、Patricia Y. Hayes、James J. De Voss
DOI:10.1002/chem.201203035
日期:2012.12.7
The products of cytochrome P450BM3‐catalysed oxidation of cyclopropyl‐containing dodecanoic acids are consistent with the presence of a cationic reaction intermediate, which results in efficient dehydrogenation of the rearranged probes by the enzyme. These results highlight the importance of enzyme–substrate complementarity, with a cationic intermediate occurring only when the probes used begin to
细胞色素P450 BM3催化的含环丙基十二烷酸氧化的产物与阳离子反应中间体的存在是一致的,这导致了酶对重排探针的有效脱氢。这些结果突出了酶与底物互补的重要性,阳离子中间体仅在所用探针开始从该酶的理想底物上分化时才出现。这也有助于调和文献报道,该报道支持阳离子中间体与某些细胞色素P450酶/底物对的存在。