we have cloned the flagellin genes of caulobacter and report here the use of these sequences as probes to demonstrate that ( 1 ) the level of flagellin mrna is regulated during the cell cycle in a pattern coincident with flagellum polypeptide synthesis and ( 2 ) flagellin mrna synthesized before cell division is segregated with progeny swarmer cells .
C0007590
cell division
C0007634
cells