0000000000064414

AUTHOR

Marie-thérèse Le Dall

showing 2 related works from this author

Evaluation of acyl coenzyme A oxidase (Aox) isozyme function in the n- alkane-assimilating yeast Yarrowia lipolytica

1999

ABSTRACT We have identified five acyl coenzyme A (CoA) oxidase isozymes (Aox1 through Aox5) in the n -alkane-assimilating yeast Yarrowia lipolytica , encoded by the POX1 through POX5 genes. The physiological function of these oxidases has been investigated by gene disruption. Single, double, triple, and quadruple disruptants were constructed. Global Aox activity was determined as a function of time after induction and of substrate chain length. Single null mutations did not affect growth but affected the chain length preference of acyl-CoA oxidase activity, as evidenced by a chain length specificity for Aox2 and Aox3. Aox2 was shown to be a long-chain acyl-CoA oxidase and Aox3 was found to …

MESH : Escherichia coliMESH: Sequence Analysis DNAMESH : Molecular Sequence DataMutantGene ExpressionMESH: Base Sequencechemistry.chemical_compoundCloning Molecular[INFO.INFO-BT]Computer Science [cs]/BiotechnologyDNA FungalMESH: MutagenesisMESH : IsoenzymesOxidase testbiologyMESH: Escherichia coliMESH: Acyl-CoA OxidaseMESH : MutagenesisMESH : Cell DivisionMESH : OxidoreductasesIsoenzymesBlotEukaryotic Cells[SDV.MP]Life Sciences [q-bio]/Microbiology and ParasitologyFungalBiochemistryMESH: IsoenzymesMESH: Cell DivisionMESH : Acyl-CoA OxidaseOxidoreductasesSequence Analysis[ INFO.INFO-BT ] Computer Science [cs]/BiotechnologyCell DivisionMESH: Gene ExpressionMESH : Cloning MolecularGenes FungalMolecular Sequence DataMicrobiologyIsozymeWESTERN BLOTTINGAlkanes[SDV.BBM] Life Sciences [q-bio]/Biochemistry Molecular BiologyEscherichia coliMESH: Cloning Molecular[SDV.BBM]Life Sciences [q-bio]/Biochemistry Molecular BiologyMESH: OxidoreductasesMESH: Saccharomycetales[ SDV.BBM ] Life Sciences [q-bio]/Biochemistry Molecular BiologyMolecular BiologyGeneMESH : AlkanesMESH: Molecular Sequence DataBase SequenceMolecularYarrowiaSequence Analysis DNAMESH : SaccharomycetalesDNAbiology.organism_classificationMolecular biologyYeastMESH : Gene ExpressionMESH: AlkanesMESH: DNA FungalOleic acid[INFO.INFO-BT] Computer Science [cs]/BiotechnologyGeneschemistryMutagenesisSaccharomycetalesMESH : Base SequenceMESH : Genes FungalAcyl-CoA OxidaseMESH : DNA FungalMESH: Genes FungalMESH : Sequence Analysis DNACloning
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Cloning and characterization of the peroxisomal acyl CoA oxidaseACO3 gene from the alkane-utilizing yeastYarrowia lipolytica

1998

The ACO3 gene, which encodes one of the acyl-CoA oxidase isoenzymes, was isolated from the alkane-utilizing yeast Yarrowia lipolytica as a 10 kb genomic fragment. It was sequenced and found to encode a 701-amino acid protein very similar to other ACOs, 67.5% identical to Y. lipolytica Aco1p and about 40% identical to S. cerevisiae Pox1p. Haploid strains with a disrupted allele were able to grow on fatty acids. The levels of acyl-CoA oxidase activity in the ACO3 deleted strain, in an ACO1 deleted strain and in the wild-type strain, suggested that ACO3 encodes a short chain acyl-CoA oxidase isoenzyme. This narrow substrate spectrum was confirmed by expression of Aco3p in E. coli.

CloningOxidase testStrain (chemistry)BioengineeringYarrowiaBiologybiology.organism_classificationApplied Microbiology and BiotechnologyBiochemistryMolecular biologyYeastBiochemistryGene expressionGeneticsAcyl-CoA oxidaseGeneBiotechnologyYeast
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