Highly enantioselective stereo-inverting sec-alkylsulfatase activity of hyperthermophilic Archaea
作者:Sabine R. Wallner、Bettina M. Nestl、Kurt Faber
DOI:10.1039/b504883d
日期:——
rac-sec-Alkyl sulfate esters 1a-8a were resolved in low to excellent enantioselectivities with E-values up to >200 using whole cells of aerobically-grown hyperthermophilic sulfur-metabolizers, such as Sulfolobus solfataricus DSM 1617, Sulfolobus shibatae DSM 5389 and, most notably, Sulfolobus acidocaldarius DSM 639. Significantly enhanced selectivities were obtained using cells grown on sucrose-enriched
使用需氧生长的嗜热硫代谢物的全细胞,如Sulfolobus solfataricus DSM 1617,Shiulfoloshishibatae DSM 5389,将rac-sec-烷基硫酸酯1a-8a分解为低至优异的对映选择性,E值高达> 200。最值得注意的是,Sulfolobus acidocaldarius DSM639。使用在富含蔗糖的Brock培养基上生长的细胞可以显着提高选择性。已显示该生物水解的立体化学过程在构型的严格颠倒下进行,因此优选的(R)-对映异构体被转化成相应的(S)-仲醇以提供均手性产物混合物。