The subunit in E. coli RNA polymerase which is required for recognition of the promoter sequence is:
A) ρ (rho).
B) α (alpha).
C) β (beta).
D) β′ (beta prime).
E) σ (sigma).

Question

Quizplus · Accepted Answer

The sigma (σ) subunit is required for recognition of the promoter sequence in E. coli RNA polymerase. Sigma subunit helps in the binding and recognition of the promoter sequence, which is essential for RNA polymerase to initiate transcription.

The Subunit in E