Resumen
We have developed a novel metabolic modeling methodology that traces the flow of functional moieties (chemical substructures) through metabolic pathways via the deconvolution of mass isotopologue data of specific metabolites. We have implemented a general simulated annealing/genetic algorithm for parameter optimization called Genetic Algorithm for Isotopologues in Metabolic Systems (GAIMS), with a model selection method developed from the Akaike information criterion. GAIMS is tailored for analysis of ultrahigh resolution, high mass-accuracy isotopologue data from Fourier transform-ion cyclotron resonance mass spectrometry (FT-ICR-MS) for interpretation of non-steady state stable isotope-resolved metabolomics (SIRM) experiments. We applied GAIMS to a time-course of uridine diphospho-N-acetylglucosamine (UDP-GlcNAc) and uridine diphospho-N-acetylgalactosamine (UDP-GalNAc) isotopologue data obtained from LNCaP-LN3 prostate cancer cells grown in [U-13C]-glucose. The best metabolic model was identified, which revealed the relative contribution of specific metabolic pathways to 13C incorporation from glucose into individual functional moieties of UDP-GlcNAc and UDP-GalNAc. Furthermore, this analysis allows direct comparison of MS isotopologue data with NMR positional isotopomer data for independent experimental cross-verification.
| Idioma original | English |
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| Título de la publicación alojada | BIOINFORMATICS 2011 - Proceedings of the International Conference on Bioinformatics Models, Methods and Algorithms |
| Páginas | 108-115 |
| Número de páginas | 8 |
| Estado | Published - 2011 |
| Evento | International Conference on Bioinformatics Models, Methods and Algorithms, BIOINFORMATICS 2011 - Rome, Italy Duración: ene 26 2011 → ene 29 2011 |
Serie de la publicación
| Nombre | BIOINFORMATICS 2011 - Proceedings of the International Conference on Bioinformatics Models, Methods and Algorithms |
|---|
Conference
| Conference | International Conference on Bioinformatics Models, Methods and Algorithms, BIOINFORMATICS 2011 |
|---|---|
| País/Territorio | Italy |
| Ciudad | Rome |
| Período | 1/26/11 → 1/29/11 |
ODS de las Naciones Unidas
Este resultado contribuye a los siguientes Objetivos de Desarrollo Sostenible
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Good health and well being
ASJC Scopus subject areas
- Information Systems
- Applied Mathematics
Huella
Profundice en los temas de investigación de 'Metabolic modeling of converging metabolic pathways: Analysis of non-steady state stable isotope-resolve metabolism of UDP-GlcNAc and UDP-GalNAc'. En conjunto forman una huella única.Citar esto
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