FIG. 6.
Increase in 2-thiocytidine with growth (from upper left) of strain CL100 in LB medium. The A600 value is given next to each HPLC trace. The final trace, lower right, is of parent strain MC1061 and shows typical levels of 2-thiocytidine (s2C) and 5-methylaminomethyl-2-thiouridine (mnm5s2U) at all growth phases.