The bacteriophage repressor controls the genetic switch determining the lytic cycle following phage infection. It competes with the Cro protein which selects for the lysogenic cycle. For details see Lambda repressor.
3D structures of bacteriophage repressor
Updated on 21-July-2013
Lambda repressor (LR)
1lrp – LR – Enterobacteria phage λ
2hnf, 2ho0 – LR (mutant)
1lmb, 1lli – LR + DNA
Lambda repressor cI protein
1f39, 1kca – LR C terminal
3kz3 – LR (mutant)
3bdn – LR (mutant) + DNA
1rio – LR N terminal + σ factor + DNA
Lambda repressor Cro protein
4cro, 5cro – LR N terminal
1orc, 1d1m, 1d1l, 2ecs, 2ovg – LR N terminal (mutant)
1cop – LR N terminal - NMR
2orc, 2a63 – LR N terminal (mutant) - NMR
6cro, 3orc – LR N terminal + DNA
Phage 434 repressor cI protein (434R)
1pra, 1r63, 2r63, 1sq8 – 434R N terminal - NMR
1r69 – 434R N terminal
2or1, 1per, 1rpe – 434R N terminal + DNA
Phage 434 repressor Cro protein (434R)
2cro – 434R
1zug – 434R N terminal - NMR
3cro – 434R N terminal + DNA
Mu bacteriophage repressor (MR)
1qpm – MR N terminal – NMR
1g4d – MR N terminal + DNA – NMR
186 bacteriophage repressor cI protein (186R)
2fjr – 186R (mutant)
2fkd – 186R C terminal
P22 repressor Cro protein (P22R)
P22 bacteriophage repressor (P22R)
1rzs – P22R N terminal – NMR
