Patent ID: 6953684

Claim:
A recombinant microorganism capable of producing 1,3-propanediol from a carbon source said recombinant microorganism comprising a) at least one introduced gene encoding a glycerol dehydratase from Klebsiella or Citrobacter or a diol dehydratase from Klebsiella, Clostridium or Salmonella and b) at least one introduced gene encoding protein X, wherein the gene encoding protein X is i) isolated from a glycerol dehydratase gene cluster from an organism selected from the genera consisting of Klebsiella and Citrobacter or ii) isolated from a diol dehydratase gene cluster from an organism selected from the genera consisting of Klebsiella, Clostridium and Salmonella and wherein protein X has no enzymatic activity, wherein production of 1,3-propanediol is greater in the recombinant microorganism comprising protein X than in the recombinant microorganism lacking said gene encoding protein X.