TY  - JOUR
A1  - Dandekar, Thomas
A1  - Fieselmann, Astrid
A1  - Fischer, Eva
A1  - Popp, Jasmin
A1  - Hensel, Michael
A1  - Noster, Janina
T1  - Salmonella—how a metabolic generalist adopts an intracellular lifestyle during infection
JF  - Frontiers in Cellular and Infection Microbiology
N2  - The human-pathogenic bacterium Salmonella enterica adjusts and adapts to different environments while attempting colonization. In the course of infection nutrient availabilities change drastically. New techniques, “-omics” data and subsequent integration by systems biology improve our understanding of these changes. We review changes in metabolism focusing on amino acid and carbohydrate metabolism. Furthermore, the adaptation process is associated with the activation of genes of the Salmonella pathogenicity islands (SPIs). Anti-infective strategies have to take these insights into account and include metabolic and other strategies. Salmonella infections will remain a challenge for infection biology.
KW  - regulation
KW  - virulence
KW  - "-omics"
KW  - metabolism
KW  - Salmonella-containing vacuole (SCV)
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-120686
SN  - 2235-2988
VL  - 4
IS  - 191
ER  - 
TY  - JOUR
A1  - Ahmed, Zeeshan
A1  - Zeeshan, Saman
A1  - Huber, Claudia
A1  - Hensel, Michael
A1  - Schomburg, Dietmar
A1  - Münch, Richard
A1  - Eylert, Eva
A1  - Eisenreich, Wolfgang
A1  - Dandekar, Thomas
T1  - ‘Isotopo’ a database application for facile analysis and management of mass isotopomer data
JF  - Database
N2  - The composition of stable-isotope labelled isotopologues/isotopomers in metabolic products can be measured by mass spectrometry and supports the analysis of pathways and fluxes. As a prerequisite, the original mass spectra have to be processed, managed and stored to rapidly calculate, analyse and compare isotopomer enrichments to study, for instance, bacterial metabolism in infection. For such applications, we provide here the database application ‘Isotopo’. This software package includes (i) a database to store and process isotopomer data, (ii) a parser to upload and translate different data formats for such data and (iii) an improved application to process and convert signal intensities from mass spectra of \(^{13}C\)-labelled metabolites such as tertbutyldimethylsilyl-derivatives of amino acids. Relative mass intensities and isotopomer distributions are calculated applying a partial least square method with iterative refinement for high precision data. The data output includes formats such as graphs for overall enrichments in amino acids. The package is user-friendly for easy and robust data management of multiple experiments.
KW  - stable-isotope
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-120102
VL  - 2014
IS  - bau077
ER  -