What is Required for Conversion from the Closed-Promoter Complex to Open-Promoter

Question

What is required for conversion from the closed-promoter complex to open-promoter complex?
A)ATP binding
B)ATP hydrolysis
C)GTP binding
D)GTP hydrolysis
E)DNA bending

Accepted Answer

DNA bending is required for conversion from the closed-promoter complex to open-promoter complex. This bending facilitates the separation of the two strands of DNA, enabling the RNA polymerase to access the template strand and initiate transcription. ATP or GTP binding/hydrolysis is not directly involved in this process.