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@ARTICLE{Siedentop:1006594,
author = {Siedentop, Regine and Siska, Maximilian and Möller, Niklas
and Lanzrath, Hannah and von Lieres, Eric and Lütz, Stephan
and Rosenthal, Katrin},
title = {{B}ayesian {O}ptimization for an {ATP}-{R}egenerating {I}n
{V}itro {E}nzyme {C}ascade},
journal = {Catalysts},
volume = {13},
number = {3},
issn = {2073-4344},
address = {Basel},
publisher = {MDPI},
reportid = {FZJ-2023-01735},
pages = {468 -},
year = {2023},
abstract = {Enzyme cascades are an emerging synthetic tool for the
synthesis of various molecules, combining the advantages of
biocatalysis and of one-pot multi-step reactions. However,
the more complex the enzyme cascade is, the more difficult
it is to achieve adequate productivities and product
concentrations. Therefore, the whole process must be
optimized to account for synergistic effects. One way to
deal with this challenge involves data-driven models in
combination with experimental validation. Here, Bayesian
optimization was applied to an ATP-producing and
-regenerating enzyme cascade consisting of polyphosphate
kinases. The enzyme and co-substrate concentrations were
adjusted for an ATP-dependent reaction, catalyzed by
mevalonate kinase (MVK). With a total of 16 experiments, we
were able to iteratively optimize the initial concentrations
of the components used in the one-pot synthesis to improve
the specific activity of MVK with 10.2 U mg−1. The
specific activity even exceeded the results of the reference
reaction with stoichiometrically added ATP amounts, with
which a specific activity of 8.8 U mg−1 was reached. At
the same time, the product concentrations were also improved
so that complete yields were achieved.},
cin = {IBG-1},
ddc = {540},
cid = {I:(DE-Juel1)IBG-1-20101118},
pnm = {2172 - Utilization of renewable carbon and energy sources
and engineering of ecosystem functions (POF4-217) / DFG
project 422694804 - SPP 2240: Bioelektrochemische und
ingenieurwissenschaftliche Grundlagen zur Etablierung von
Elektro-Biotechnologie für die Biosynthese - eBiotech
(422694804)},
pid = {G:(DE-HGF)POF4-2172 / G:(GEPRIS)422694804},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000954086000001},
doi = {10.3390/catal13030468},
url = {https://juser.fz-juelich.de/record/1006594},
}