Transformant and process for producing polyester using the same

摘要

A gene expression cassette comprising an Aeromonas caviae-origin polyhydroxyalkanoic acid (PHA) synthase gene having a mutation introduced thereinto and a promoter and a terminator acting in a yeast; a transformant constructed by transferring the above gene expression cassette into a yeast; and a process for producing a polyester using the above transformant. Thus, it becomes possible to efficiently produce a copolymerized polyester having a high biodegradability and excellent properties by copolymerizing 3-hydroxyalkanoic acids in a yeast.