Bayer obtains United States patent.
Bayer BioScience GmbH (Potsdam, Germany) has patented DNA sequences coding for proteins having the enzymatic activity of an amylosucrase
which allows the synthesis of linear .alpha.-1,4 glucans from the
substrate sucrose by bacteria, fungi and plants or in cell-free systems.
The invention furthermore describes plasmids and bacteria containing
these DNA sequences as well as processes for the production of plants
and microorganisms capable of intracellularly or extracellularly
expressing a polypeptide having amylosucrase activity. The invention
furthermore relates to the production of pure fructose using proteins
exhibiting the enzymatic activity of amylosucrase. (US 6,818,421)