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2015 ; 31
(ä): 123-31
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English Wikipedia
Precision metabolic engineering: The design of responsive, selective, and
controllable metabolic systems
#MMPMID26189665
McNerney MP
; Watstein DM
; Styczynski MP
Metab Eng
2015[Sep]; 31
(ä): 123-31
PMID26189665
show ga
Metabolic engineering is generally focused on static optimization of cells to
maximize production of a desired product, though recently dynamic metabolic
engineering has explored how metabolic programs can be varied over time to
improve titer. However, these are not the only types of applications where
metabolic engineering could make a significant impact. Here, we discuss a new
conceptual framework, termed "precision metabolic engineering," involving the
design and engineering of systems that make different products in response to
different signals. Rather than focusing on maximizing titer, these types of
applications typically have three hallmarks: sensing signals that determine the
desired metabolic target, completely directing metabolic flux in response to
those signals, and producing sharp responses at specific signal thresholds. In
this review, we will first discuss and provide examples of precision metabolic
engineering. We will then discuss each of these hallmarks and identify which
existing metabolic engineering methods can be applied to accomplish those tasks,
as well as some of their shortcomings. Ultimately, precise control of metabolic
systems has the potential to enable a host of new metabolic engineering and
synthetic biology applications for any problem where flexibility of response to
an external signal could be useful.