Chen Deliang, Savidge Tor
Jiangxi Key Laboratory of Organo-Pharmaceutical Chemistry, Gannan Normal University, Jiangxi 341000, China.
Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA. Department of Pathology, Texas Children's Hospital, Houston, TX 77030, USA.
Science. 2015 Aug 28;349(6251):936. doi: 10.1126/science.aab0095. Epub 2015 Aug 27.
Fried et al. (Reports, 19 December 2014, p. 1510) demonstrate electric field-dependent acceleration of biological catalysis using ketosteroid isomerase as a prototypic example. These findings were not extended to aqueous solution because water by itself has field fluctuations that are too large and fast to provide a catalytic effect. Given physiological context, when water electrostatic interactions are considered, electric fields play a less important role in the catalysis.
弗里德等人(《报告》,2014年12月19日,第1510页)以酮甾体异构酶作为典型示例,证明了生物催化存在电场依赖性加速作用。这些发现并未扩展到水溶液中,因为水自身存在的场波动过大且过快,无法产生催化作用。考虑到生理环境,当考虑水的静电相互作用时,电场在催化过程中所起的作用较小。