Towards a Mechanistic Understanding of Factors Controlling the Stereoselectivity of Transketolase
作者:Anna Baierl、Axel Theorell、Ursula Mackfeld、Philipp Marquardt、Friederike Hoffmann、Stephanie Moers、Katharina Nöh、Patrick C. F. Buchholz、Jürgen Pleiss、Martina Pohl
DOI:10.1002/cctc.201800299
日期:2018.6.21
relevant amino acids of TKs from different species, a standard numbering scheme was developed. Using this concept, H26, H261, and F434 were identified as the key residues which mediate stereoselectivity, where two main factors influenced the arrangement of ThDP‐bound donor and acceptor prior to carboligation: the relative orientation of the substrate side chains and the orientation of the acceptor carbonyl
efficient in situ generation of hydroxypyruvate from d‐serine catalyzed by a d‐amino acid oxidase from Rhodotorula gracilis. This strategy revealed an interesting alternative to the conventional chemical synthesis of hydroxypyruvate starting from toxic bromopyruvate or to the enzymatic transamination from l‐serine requiring an additional substrate as amino acceptor. Hydroxypyruvate thus produced was used
Hobbs, Gordon R.; Lilly, Malcolm D.; Turner, Nicholas J., Journal of the Chemical Society. Perkin transactions I, 1993, # 2, p. 165 - 166
作者:Hobbs, Gordon R.、Lilly, Malcolm D.、Turner, Nicholas J.、Ward, John M.、Willets, Andrew J.、Woodley, John M.
DOI:——
日期:——
Transketolase from Escherichia coli: A practical procedure for using the biocatalyst for asymmetric carbon-carbon bond synthesis
作者:K.Gall Morris、Mark E.B. Smith、Nicholas J. Turner、Malcolm D. Lilly、Robin K. Mitra、John M. Woodley
DOI:10.1016/0957-4166(96)00266-2
日期:1996.8
A practical procedure is reported for the use of the enzyme transketolase, from Escherichia coli, for asymmetric carbon-carbon bond synthesis. The reactions with the biocatalyst are conveniently carried out, on a gram scale, in unbuffered aqueous media by employing a pH autotitrator. An improved large scale synthesis of hydroxypyruvate is also reported. Copyright (C) 1996 Elsevier Science Ltd