Breaking the Dogma of Aldolase Specificity: Simple Aliphatic Ketones and Aldehydes are Nucleophiles for Fructose-6-phosphate Aldolase
作者:Raquel Roldán、Israel Sanchez-Moreno、Thomas Scheidt、Virgil Hélaine、Marielle Lemaire、Teodor Parella、Pere Clapés、Wolf-Dieter Fessner、Christine Guérard-Hélaine
DOI:10.1002/chem.201701020
日期:2017.4.11
d‐Fructose‐6‐phosphate aldolase (FSA) was probed for extended nucleophile promiscuity by using a series of fluorogenic substrates to reveal retro‐aldol activity. Four nucleophiles ethanal, propanone, butanone, and cyclopentanone were subsequently confirmed to be non‐natural substrates in the synthesis direction using the wild‐type enzyme and its D6H variant. This exceptional widening of the nucleophile substrate scope
d-果糖-6-磷酸醛缩酶(FSA)通过使用一系列荧光底物来揭示逆醛醇的活性,从而探明了亲核试剂的延长混杂性。随后使用野生型酶及其D6H变体在合成方向证实了四种亲核试剂乙醛,丙酮,丁酮和环戊酮是非天然底物。亲核试剂底物范围的这种异常扩大,以高收率和高立体选择性迅速进入了氧化程度较低的烷基酮和醛,这是迄今为止不可能的。