Structure of Epi-Isozizaene Synthase from <i>Streptomyces coelicolor</i> A3(2), a Platform for New Terpenoid Cyclization Templates<sup>,</sup>
作者:Julie A. Aaron、Xin Lin、David E. Cane、David W. Christianson
DOI:10.1021/bi902088z
日期:2010.3.2
binding and catalysis in a bacterial terpenoid cyclase. Moreover, the binding interactions of BTAC may mimic those of a carbocation intermediate in catalysis. Accordingly, the aromatic rings of F95, F96, and F198 appear to be well-oriented to stabilize carbocation intermediates in the cyclization cascade through cation−π interactions. Mutagenesis of aromatic residues in the enzyme active site results in the