Which of the following factors is an ATP-dependent helicase utilized in one of the termination mechanisms in bacteria?
A)α (alpha)
B)β (beta)
C)ρ (rho)
D)δ (delta)

Question

Quizplus · Accepted Answer

The ATP-dependent helicase utilized in one of the termination mechanisms in bacteria is ρ (rho) factor. It binds to the nascent mRNA and moves along it, unwinding the RNA duplexes with the help of ATP hydrolysis. When ρ factor encounters a pause site created by a GC-rich sequence at the 3' end of the RNA, it destabilizes the RNA polymerase complex, leading to termination of transcription.

Which of the Following Factors Is an ATP-Dependent Helicase Utilized