ENZYME GENE PARTICIPATING IN THE SYNTHESIS OF POLYESTER AND PROCESS FOR PRODUCING POLYESTER USING THE SAME

摘要

ABSTRACT This invention relates to a method of producingpolyesters resulting from homopolymerization or copolymerization of a 3-hydroxyalkanoic acid(s) and havingbiodegradability and good physical properties using yeasts ashosts.By constructing at least one enzyme gene involved in polyester synthesis by adding a DNA coding a peroxisome-targeting signal, introducing a enzyme geneexpression cassette containing that gene into yeast, and cultivating the thus-obtained transformant, it becomes possible to cause accumulation of a polyester resulting from homopolymerization or copolymerization of a 3-hydroxyalkanoic acid(s) in yeast cells and recover the polyester from the culture.