ENZYMATIC PROCESS FOR PRODUCING GDP-ALPHA-D-MANNOSE, A GDP MANNOSE PYROPHOSPHORYLASE AND PHOSPHOMANNOMUTASE SUITABLE FOR THAT PROCESS, THE EXTRACTION OF THE SAID ENZYMES, AND AN ENZYME TEST

摘要

The invention concerns a GDP-mannose-pyrophosphorylase. The aim of the invention is to produce a GDP-mannose-pyrophosphorylase which can be obtained for an acceptable outlay and does not cause problems, in particular because of its monofunctionality, in continuous multiple stage processes. To that end, a mannose- or mannose-derivative-specific GDP-mannose-pyrophosphorylase, which can be isolated from microorganisms and has a specific activity of >/= 2 U/mg, is prepared.