Table 9.1. Binding sites for lambda cro protein at operators in the cI region of bacteriophage lambda (Gussin et al., 1983). OL1 5′-T A T C A C C G C C A G T G G T A-3′ 3′-A T A G T G G C G G T C A C C A T-5′ OR1 5′-T A T C A C C G C C A G A G G T A-3′ 3′-A T A G T G G C G G T C T C C A T-5′ OL2 5′-T A T C T C T G G C G G T G T T G-3′ 3′-A T A G A G A C C G C C A C A A C-5′ OR2 5′-T A A C A C C G T G C G T G T T G-3′ 3′-A T T G T G G C A C G C A C A A C-5′ OL3 5′-T A T C A C C G C A G A T G G T T-3′ 3′-A T A G T G G C G T C T A C C A A-5′ OR3 5′-T A T C A C C G C A A G G G A T A-3′ 3′-A T A G T G G C G T T C C C T A T-5