FiatFlux - a software for metabolic flux analysis from ¹³C-glucose experiments

Verfasser / Beitragende:
[Eliane Fischer, Uwe; id_orcid 0000-0002-5923-0770 Sauer]
Ort, Verlag, Jahr:
2005
Enthalten in:
BMC Bioinformatics, 6, p. 209
Format:
Artikel (online)
ID: 528785230
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024 7 0 |a 10.3929/ethz-a-005046458  |2 doi 
024 7 0 |a 10.1186/1471-2105-6-209  |2 doi 
035 |a (ETHRESEARCH)oai:www.research-collecti.ethz.ch:20.500.11850/287426 
245 0 0 |a FiatFlux - a software for metabolic flux analysis from ¹³C-glucose experiments  |h [Elektronische Daten]  |c [Eliane Fischer, Uwe; id_orcid 0000-0002-5923-0770 Sauer] 
506 |a Open access  |2 ethresearch 
520 3 |a Background Quantitative knowledge of intracellular fluxes is important for a comprehensive characterization of metabolic networks and their functional operation. In contrast to direct assessment of metabolite concentrations, in vivo metabolite fluxes must be inferred indirectly from measurable quantities in 13C experiments. The required experience, the complicated network models, large and heterogeneous data sets, and the time-consuming set-up of highly controlled experimental conditions largely restricted metabolic flux analysis to few expert groups. A conceptual simplification of flux analysis is the analytical determination of metabolic flux ratios exclusively from MS data, which can then be used in a second step to estimate absolute in vivo fluxes. Results Here we describe the user-friendly software package FiatFlux that supports flux analysis for non-expert users. In the first module, ratios of converging fluxes are automatically calculated from GC-MS-detected 13C-pattern in protein-bound amino acids. Predefined fragmentation patterns are automatically identified and appropriate statistical data treatment is based on the comparison of redundant information in the MS spectra. In the second module, absolute intracellular fluxes may be calculated by a 13C-constrained flux balancing procedure that combines experimentally determined fluxes in and out of the cell and the above flux ratios. The software is preconfigured to derive flux ratios and absolute in vivo fluxes from [1-13C] and [U-13C]glucose experiments and GC-MS analysis of amino acids for a variety of microorganisms. Conclusion FiatFlux is an intuitive tool for quantitative investigations of intracellular metabolism by users that are not familiar with numerical methods or isotopic tracer experiments. The aim of this open source software is to enable non-specialists to adapt the software to their specific scientific interests, including other 13C-substrates, labeling mixtures, and organisms. 
540 |a Creative Commons Attribution 2.0 Generic  |u http://creativecommons.org/licenses/by/2.0  |2 ethresearch 
690 7 |a STOFFWECHSELWEGE UND STOFFWECHSELZYKLEN (BIOCHEMIE)  |2 ethresearch 
690 7 |a ZELLMETABOLISMUS + ZELLERNÄHRUNG (CYTOLOGIE)  |2 ethresearch 
690 7 |a GLUKOSE (BIOCHEMIE)  |2 ethresearch 
690 7 |a KOHLENSTOFFISOTOPE  |2 ethresearch 
690 7 |a GLUKOSE (BIOCHEMIE)  |2 ethresearch 
690 7 |a BIOLOGISCHE INFORMATIK UND COMPUTERANWENDUNG IN DER BIOLOGIE  |2 ethresearch 
690 7 |a METABOLIC PATHWAYS + METABOLIC CYCLES (BIOCHEMISTRY)  |2 ethresearch 
690 7 |a CELL NUTRITION + CELL METABOLISM (CYTOLOGY)  |2 ethresearch 
690 7 |a GLUCOSE (BIOCHEMISTRY)  |2 ethresearch 
690 7 |a CARBON/ISOTOPES  |2 ethresearch 
690 7 |a GLUCOSE (BIOCHEMISTRY)  |2 ethresearch 
690 7 |a BIOLOGICAL INFORMATICS AND COMPUTER APPLICATIONS IN BIOLOGY  |2 ethresearch 
690 7 |a Flux Ratio  |2 ethresearch 
690 7 |a Flux Analysis  |2 ethresearch 
690 7 |a Metabolic Flux Analysis  |2 ethresearch 
690 7 |a Central Carbon Metabolism  |2 ethresearch 
690 7 |a Ratio Module  |2 ethresearch 
690 7 |a Life sciences  |2 ethresearch 
700 1 |a Fischer  |D Eliane  |e joint author 
700 1 |a Sauer  |D Uwe; id_orcid 0000-0002-5923-0770  |e joint author 
773 0 |t BMC Bioinformatics  |d London : BioMed Central  |g 6, p. 209  |x 1471-2105 
856 4 0 |u http://hdl.handle.net/20.500.11850/287426  |q text/html  |z WWW-Backlink auf das Repository (Open access) 
908 |D 1  |a Journal Article  |2 ethresearch 
950 |B ETHRESEARCH  |P 856  |E 40  |u http://hdl.handle.net/20.500.11850/287426  |q text/html  |z WWW-Backlink auf das Repository (Open access) 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Fischer  |D Eliane  |e joint author 
950 |B ETHRESEARCH  |P 700  |E 1-  |a Sauer  |D Uwe; id_orcid 0000-0002-5923-0770  |e joint author 
950 |B ETHRESEARCH  |P 773  |E 0-  |t BMC Bioinformatics  |d London : BioMed Central  |g 6, p. 209  |x 1471-2105 
898 |a BK010053  |b XK010053  |c XK010000 
949 |B ETHRESEARCH  |F ETHRESEARCH  |b ETHRESEARCH  |j Journal Article  |c Open access