A method for controlling and modifying biopolymer synthesis by manipulation of the genetics and enzymology of synthesis of polyhydroxybutyrate (PHB) and polyhydroxyalkanoate (PHA) polyesters at the molecular level in procaryotic and eukaryotic cells, especially plants. Examples demonstrate the isolation,...http://www.google.fr/patents/US5534432?utm_source=gb-gplus-shareBrevet US5534432 - Polyhydroxybutyrate polymerase