1.1.3.44 physiological function joint activity of enzyme and 6'-oxoglucosaminyl:L-glutamate aminotransferase Neo-18 is responsible for the conversion of paromamine to neaminein the biosynthetic pathway of neomycin through a mechanism of FAD-dependent dehydrogenation followed by a pyridoxal-5'-phosphate-mediated transamination -, 719294