Info Research Research interests Biochemical function and structure of enzymes of nicotine and carbohydrate catabolism encoded on the catabolic megaplasmid pOA1 of Arthrobacter nicotinovorans. Fig. 1. Genome of the catabolic megaplasmid pAO1 of A. nicotinovorans Fig. 2. Enzymes and intermediates of nicotine catabolism by A. nicotinovorans Fig. 3. The nic-gene cluster of pAO1 Fig.4. Comparison of nic-gene clusters o different bacteria