FIG. 3.

(A) JUMPstart sequences from polysaccharide gene clusters directing the synthesis of amylovoran (ams) (27), colanic acid (cps) (45), O7 antigen (wb*) (31), and the E. coli and Klebsiella group 1 capsule clusters examined in this study. Variations from the E. coli K30 sequence are highlighted in boldface. The two ops elements found in the E. coli O7 JUMPstart sequence are underlined. (B) Stem-loop structures which have been identified in cps_ECK30 and cps_KPK2. They are located immediately downstream of wzc and may function as transcription terminators.