Patent 7148048 was granted and assigned to Zymenex A/S on December, 2006 by the United States Patent and Trademark Office.
A process for purification of recombinant porphobilinogen deaminase (rhPBGD) on an industrial scale by starting from a rhPBGD containing extract obtained from a fermentation of a recombinant cell capable of expressing the rhPBGD and the use of the purified product for the preparation of a medicament.