... and also that the gene ismonocistronic and not a member of the rib operon [29]. Thisposes the question of whether rib genes are organized in an operon and the genes for 3,4-dihydroxy-2-butanone4-phosphate ... Francesco, R.D. (1991) Structure, synthesis,and physical properties of covalently bound flavins and 6- and8-hydroxyflavins. In Chemistry and Biochemistry of Flavoenzymes(M€uuller, F., ed.), Vol. ... that of the threemutants, respectively. The maximum cell density of the parent cells cultured in 1% and 3% NaCl was 82% and73% of that of M1, respectively. Growth and biolumines-cence curves of...