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@ARTICLE{Mller:908892,
author = {Müller, Carolin and Bakkes, Patrick J. and Lenz, Patrick
and Waffenschmidt, Vera and Helleckes, Laura M. and Jaeger,
Karl-Erich and Wiechert, Wolfgang and Knapp, Andreas and
Freudl, Roland and Oldiges, Marco},
title = {{A}ccelerated strain construction and characterization of
{C}. glutamicum protein secretion by laboratory automation},
journal = {Applied microbiology and biotechnology},
volume = {106},
number = {12},
issn = {0171-1741},
address = {New York},
publisher = {Springer},
reportid = {FZJ-2022-02899},
pages = {4481 - 4497},
year = {2022},
abstract = {Secretion of bacterial proteins into the culture medium
simplifies downstream processing by avoiding cell disruption
for target protein purification. However, a suitable signal
peptide for efficient secretion needs to be identified, and
currently, there are no tools available to predict optimal
combinations of signal peptides and target proteins. The
selection of such a combination is influenced by several
factors, including protein biosynthesis efficiency and
cultivation conditions, which both can have a significant
impact on secretion performance. As a result, a large number
of combinations must be tested. Therefore, we have developed
automated workflows allowing for targeted strain
construction and secretion screening using two platforms.
Key advantages of this experimental setup include lowered
hands-on time and increased throughput. In this study, the
automated workflows were established for the heterologous
production of Fusarium solani f. sp. pisi cutinase in
Corynebacterium glutamicum. The target protein was monitored
in culture supernatants via enzymatic activity and split GFP
assay. Varying spacer lengths between the Shine-Dalgarno
sequence and the start codon of Bacillus subtilis signal
peptides were tested. Consistent with previous work on the
secretory cutinase production in B. subtilis, a ribosome
binding site with extended spacer length to up to 12 nt,
which likely slows down translation initiation, does not
necessarily lead to poorer cutinase secretion by C.
glutamicum. The best performing signal peptides for cutinase
secretion with a standard spacer length were identified in a
signal peptide screening. Additional insights into the
secretion process were gained by monitoring secretion stress
using the C. glutamicum K9 biosensor strain.},
cin = {IBG-1 / IMET},
ddc = {570},
cid = {I:(DE-Juel1)IBG-1-20101118 / I:(DE-Juel1)IMET-20090612},
pnm = {2172 - Utilization of renewable carbon and energy sources
and engineering of ecosystem functions (POF4-217)},
pid = {G:(DE-HGF)POF4-2172},
typ = {PUB:(DE-HGF)16},
pubmed = {35759036},
UT = {WOS:000817028300003},
doi = {10.1007/s00253-022-12017-7},
url = {https://juser.fz-juelich.de/record/908892},
}