STUDIES ON BIOSYNTHESIS OF KASUGAMYCIN. IV

BIOSYNTHESIS OF THE KASUGAMINE MOIETY FROM [1-¹⁴C]-GLUCOSAMINE AND [1, 2 or 6-¹⁴C]-GLUCOSE

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1-¹⁴C-Glucose, 2-¹⁴C-glucose, 6-¹⁴C-glucose and U-¹⁴C-glucose were incor porated into kasugamycin in similar fashion, proving that the six carbons of glucose are incorporated into kasugamycin without fragmentation. 1-¹⁴C Glucosamine was incorporated into kasugamycin to a greater extent than glucose, and almost exclusively into the kasugamine moiety.