When bacterial cells that have an integrated λ prophage in their genomes are treated with UV light, it leads to cleavage of the cI repressor.Which of the following host cell proteins activates the autoprotease activity of the cI repressor?

Question

When bacterial cells that have an integrated  λ prophage in their genomes are treated with UV light, it leads to cleavage of the cI repressor.Which of the following host cell proteins activates the autoprotease activity of the cI repressor?

Quizplus · Accepted Answer

RecA is a host cell protein that interacts with the cleaved cI repressor and activates its autoprotease activity, leading to the induction of the λ prophage and viral replication. DNA excision repair enzymes, LexA, GroES, and Exonuclease III do not have a role in activating the autoprotease activity of the cI repressor.

When Bacterial Cells That Have an Integrated λ Prophage