6533b7d2fe1ef96bd125ec1f

RESEARCH PRODUCT

Effect of acyl-CoA oxidase activity on the accumulation of gamma-decalactone by the yeast Yarrowia lipolytica: a factorial approach.

Yves WachéJean-marc NicaudErandi Escamilla GarcíaJean-marc Belin

subject

0106 biological sciencesYarrowia lipolyticaMESH: Enzyme ActivationMetabolic Clearance RateMESH: Factor Analysis StatisticalYarrowiaBiologymodèleModels Biological01 natural sciencesApplied Microbiology and BiotechnologyLactones03 medical and health sciencesEnzyme activatorSpecies SpecificityMESH: Computer Simulation010608 biotechnologyCombinatorial Chemistry TechniquesAcyl-CoA oxidaseMESH: Species SpecificityComputer Simulation030304 developmental biologychemistry.chemical_classificationMESH: Metabolic Clearance Rate0303 health sciencesOxidase testmétabolisme des acides grasAcyl-CoA oxidase activityMESH: Acyl-CoA OxidaseMESH: Models BiologicalYarrowia[SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry Molecular Biology/Molecular biologyGeneral MedicinePeroxisomebiology.organism_classificationYeastEnzyme ActivationBiochemistrychemistrylactoneMolecular MedicineMESH: Combinatorial Chemistry TechniquesMESH: YarrowiaAcyl-CoA OxidaseFactor Analysis StatisticalLactoneMESH: Lactones

description

International audience; beta-Oxidation is a cyclic pathway involved in the degradation of lipids. In yeast, it occurs in peroxisomes and the first step is catalyzed by an acyl-CoA oxidase (Aoxp). The yeast Yarrowia lipolytica possesses several genes (POX) coding for Aoxps. This study is based on the factorial analysis of results obtained with the many POX derivative strains that have been constructed previously. The effect of interactions between Aoxps on the acyl-CoA oxidase (Aox) activity was important even at the second order. We then investigated the effect of Aox activity on growth and lactone production. Aox activity was correlated with acidification of the medium by cells and with cellular growth but not with lactone production, although Aox activity on short chains was inversely correlated with lactone accumulation. Due to the poor correlation between Aox activity and lactone production, the modeling of this parameter gave no satisfactory results but growth depending on Aox activity was modeled.

10.1002/biot.200700085https://hal.archives-ouvertes.fr/hal-00315501