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@ARTICLE{KochKoerfges:20870,
author = {Koch-Koerfges, A. and Kabus, A. and Ochrombel, I. and
Marin, K. and Bott, M.},
title = {{P}hysiology and global gene expression of a
{C}orynebacterium glutamicum Δ{F}1{FO}-{ATP} synthase
mutant devoid of oxidative phosphorylation},
journal = {Biochimica et biophysica acta},
volume = {1817},
issn = {0006-3002},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {PreJuSER-20870},
pages = {370 - 380},
year = {2012},
note = {Financial support (grant 0315598 to MB and KM) by the
Bundesministerium fur Bildung und Forschung (BMBF) is
gratefully acknowledged. The authors would like to thank Dr.
Melanie Brocker for the help with MALDI-TOF-MS measurements,
Brita Weil and Ulrike Viets for excellent technical
assistance, and Prof. Reinhard Kramer (Universitat zu Koln)
for his support of the measurements of bioenergetic
parameters.},
abstract = {A mutant of Corynebacterium glutamicum ATCC 13032 with a
deletion of the atpBEFHAGDC genes encoding F(1)F(O)-ATP
synthase was characterized. Whereas no growth was observed
with acetate as sole carbon source, the ΔF(1)F(O) mutant
reached $47\%$ of the growth rate and $65\%$ of the biomass
of the wild type during shake-flask cultivation in glucose
minimal medium. Initially, the mutant strain showed a
strongly increased glucose uptake rate accompanied by a high
oxygen consumption rate and pyruvate secretion into the
medium. When oxygen became limiting, the glucose consumption
rate was reduced below that of the wild type and pyruvate
was consumed again. The ΔF(1)F(O) mutant had increased
levels of b- and d-type cytochromes and a significantly
increased proton motive force. Transcription of genes
involved in central carbon metabolism was essentially
unchanged, whereas genes for cytochrome bd oxidase,
pyruvate:quinone oxidoreductase, oxidative stress response,
and others showed increased mRNA levels. On the other hand,
genes for amino acid biosynthesis and ribosomal proteins as
well as many genes involved in transport displayed decreased
mRNA levels. Several of the transcriptional changes were
reflected at the protein level, but there were also
discrepancies between the mRNA and protein levels suggesting
some kind of posttranscriptional regulation. The results
prove for the first time that F(1)F(O)-ATP synthase and
oxidative phosphorylation are in general not essential for
growth of C. glutamicum.},
keywords = {Acids: metabolism / Corynebacterium glutamicum: genetics /
Corynebacterium glutamicum: growth $\&$ development /
Corynebacterium glutamicum: metabolism / Corynebacterium
glutamicum: physiology / Electron Transport: drug effects /
Electron Transport: genetics / Electron Transport:
physiology / Gene Expression Profiling / Gene Expression
Regulation, Bacterial: drug effects / Glucose: metabolism /
Glucose: pharmacology / Glycogen: metabolism / Organisms,
Genetically Modified / Oxidative Phosphorylation / Oxygen
Consumption: genetics / Oxygen Consumption: physiology /
Proteome: analysis / Proteome: metabolism /
Proton-Translocating ATPases: genetics /
Proton-Translocating ATPases: physiology / Sequence Deletion
/ Acids (NLM Chemicals) / Proteome (NLM Chemicals) / Glucose
(NLM Chemicals) / Glycogen (NLM Chemicals) /
Proton-Translocating ATPases (NLM Chemicals) / J (WoSType)},
cin = {IBT-1},
ddc = {570},
cid = {I:(DE-Juel1)VDB55},
pnm = {Biotechnologie},
pid = {G:(DE-Juel1)FUEK410},
shelfmark = {Biochemistry $\&$ Molecular Biology / Biophysics},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:22050934},
UT = {WOS:000300265300013},
doi = {10.1016/j.bbabio.2011.10.006},
url = {https://juser.fz-juelich.de/record/20870},
}