A. Phage Mucts62 plating efficiency on priA300 strains expressing IF2-1 or IF2-2/3 from plasmid vectors pSPCinfB(del2/3 or del1). Strains (from left to right): GTN1800, GTN1757, GTN1759, GTN1860, GTN1858, GTN1856, GTN1675, GTN1957.
B. Levels of Mu replication in vitro with IF2-2 and 1 mM GTP, GDP, and ppGpp. The amount of replication obtained without the added 1 mM guanine nucleotides was set to 100 units (approximately 25% of total Mu DNA replicated).
C. Effect of GTP, GDP, and ppGpp on the binding of S-IF2-2 to Mu DNA in vitro. The level of binding when no nucleotides were present is set to 100 units.