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Thesis . 2010
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Identifizierung und Charakterisierung metabolischer und struktureller Targets für antimikrobielle Substanzen in Listeria monocytogenes

Authors: Schauer, Kristina;

Identifizierung und Charakterisierung metabolischer und struktureller Targets für antimikrobielle Substanzen in Listeria monocytogenes

Abstract

Bei der Suche nach potenziellen strukturellen und metabolischen Zielmolekülen für antilisterielle und allgemein antimikrobielle Substanzen wurde eine durch Insertionsduplikationsmutagenese erzeugte L. monocytogenes EGD Mutantenbank auf Attenuation in Bezug auf die intrazelluläre Replikation in humanen Epithelzellen untersucht. Es wurden 160 mögliche Targets identifiziert, die in den Stofftransport und den allgemeinen Stoffwechsel involviert sind und Listerien eine extreme metabolische Flexibilität verleihen. Bei ihrer Charakterisierung stellten sich der Thiamintransport sowie die Enzyme der Thiaminsynthese, des Glycerolstoffwechsels als auch der Teichonsäuren-Biosynthese als mögliche Angriffsziele heraus. In the search for potential structural and metabolic target molecules for antilisterial and general antimicrobial substances, a L. monocytogenes EGD mutant bank generated by insertion-duplication-mutagenesis was screened for strains attenuated intracellular replication in human epithelial cells. Upon subsequent analysis, 160 genes were identified that are predominately are involved in the transport of nutrients and the general metabolism of Listeria, indicating the outstanding metabolic flexibility of this pathogen. Upon characterization of these mutants, enzymes involved in the thiamine transport, the thiamine synthesis, the glycerol metabolism and the teichoic acid biosynthesis revealed as potential targets.

Keywords

<em>Listeria monocytogenes</em>, Insertionsmutantenbank, Thiamin, Teichonsäuen<em></em>, Biowissenschaften, Biologie, Naturwissenschaften, <em>Listeria monocytogenes</em>, insertion mutant library, thiamine, teichoic acids, ddc: ddc:570, ddc: ddc:500

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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