Patent ID: 8685701

Claim:
A recombinant Ralstonia eutropha ( R. eutropha ) capable of producing polylactate or a hydroxyalkanoate-lactate copolymer, wherein polyhydroxyalkanoate (PHA) biosynthesis gene operon of a wild-type R. eutropha is removed, and a gene of an enzyme converting lactate into lactyl-CoA and a gene of a PHA synthase using lactyl-CoA as a substrate are introduced, wherein the gene of the enzyme converting lactate into lactyl-CoA is a propionyl-CoA transferase (pct) gene, wherein the pct gene has a nucleotide sequence corresponding to the nucleotide sequence (cppct540) of SEQ ID NO: 1 comprising the T78C, T669C, A1125G, and T1158C mutations whose corresponding amino acid sequence comprises the Val 193Ala mutation.