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@ARTICLE{Bey:893310,
author = {Beyß, Martin and Parra-Peña, Victor D. and
Ramirez-Malule, Howard and Nöh, Katharina},
title = {{R}obustifying {E}xperimental {T}racer {D}esign
for13{C}-{M}etabolic {F}lux {A}nalysis},
journal = {Frontiers in Bioengineering and Biotechnology},
volume = {9},
issn = {2296-4185},
address = {Lausanne},
publisher = {Frontiers Media},
reportid = {FZJ-2021-02684},
pages = {685323},
year = {2021},
abstract = {13C metabolic flux analysis (MFA) has become an
indispensable tool to measure metabolic reaction rates
(fluxes) in living organisms, having an increasingly diverse
range of applications. Here, the choice of the13C labeled
tracer composition makes the difference between an
information-rich experiment and an experiment with only
limited insights. To improve the chances for an informative
labeling experiment, optimal experimental design approaches
have been devised for13C-MFA, all relying on some a priori
knowledge about the actual fluxes. If such prior knowledge
is unavailable, e.g., for research organisms and producer
strains, existing methods are left with a chicken-and-egg
problem. In this work, we present a general computational
method, termed robustified experimental design (R-ED), to
guide the decision making about suitable tracer choices when
prior knowledge about the fluxes is lacking. Instead of
focusing on one mixture, optimal for specific flux values,
we pursue a sampling based approach and introduce a new
design criterion, which characterizes the extent to which
mixtures are informative in view of all possible flux
values. The R-ED workflow enables the exploration of
suitable tracer mixtures and provides full flexibility to
trade off information and cost metrics. The potential of the
R-ED workflow is showcased by applying the approach to the
industrially relevant antibiotic producer Streptomyces
clavuligerus, where we suggest informative, yet economic
labeling strategies.},
cin = {IBG-1},
ddc = {570},
cid = {I:(DE-Juel1)IBG-1-20101118},
pnm = {2171 - Biological and environmental resources for
sustainable use (POF4-217)},
pid = {G:(DE-HGF)POF4-2171},
typ = {PUB:(DE-HGF)16},
pubmed = {34239861},
UT = {WOS:000669856700001},
doi = {10.3389/fbioe.2021.685323},
url = {https://juser.fz-juelich.de/record/893310},
}