Question

Where do T7 RNAP specificity beta sheets interact?

Answer 1

The specificity beta sheets of T7 RNAP interact with the β-Glu433, β'-Ile280, and β'-Pro277 residues at the outer claw-like region of the enzyme.

Step-by-step explanation:

The specificity beta sheets of T7 RNAP (T7 RNA polymerase) interact with the β-Glu433, β'-Ile280, and β'-Pro277 residues. These residues are located at the outer claw-like region of bacterial RNAP, where the sigma factor binds. The interactions between the beta sheets and these residues are important for the binding and recognition of the promoter sequence by the T7 RNAP.