Transketolase (TK) from various origins (including Escherichia coli and yeast) has been described to be fully enantiomer specific for (2R)‐hydroxyaldehyde substrates. A thermostable TK from Geobacillus stearothermophilus (TKgst) was found to display a minor reactivity for (2S)‐hydroxylated aldehydes. To improve this activity by directed protein evolution, we have built a library of TKgst variants by
One-pot four-enzyme synthesis of ketoses with fructose 1,6-bisphosphate aldolases from Staphylococcus carnosus and rabbit muscle
作者:Zijie Li、Li Cai、Mohui Wei、Peng George Wang
DOI:10.1016/j.carres.2012.05.007
日期:2012.8
By the action of D-fructose 1,6-bisphosphate aldolases (FruA) fromrabbitmuscle and Staphylococcus carnosus, various ketoses were synthesized from glyceraldehydes or other aliphatic aldehydes as acceptors in a one-pot four-enzyme system.
Ni(Ii)-Catalysed Reactions of Free D-Fructose Derivatives Modified at Positions C-5 and/or C-6
作者:Philipp Hadwiger、Arnold E. Stütz
DOI:10.1080/07328309808001898
日期:1998.11
nickel(II) catalysed isomerisation reactions of D-fructose derivatives modified at positions 5 and/or 6 were investigated. 5,6-Dimodified open-chain D-fructose derivatives as well as an open-chain derivative of D-xylulose reacted to give complex mixtures containing no major product. 5-Modified ketohexoses invariantly were degraded to the corresponding methyl pentonates upon loss of C-1. 6-Modified D-fructofuranose