This question asks which of the following best describes the function of proteins bound at the proximal promoter elements in eukaryotic genes?
a. The bind to RNA polymerase subunits
b. They bind DNA as well as proteins
c. They play catalytic roles in transcription
d. They unwind DNA to promote polymerase binding
e. Their roles are only for activation of transcription
The answer is apparently B. but I thought C. was equally correct. What am I missing?
a. The bind to RNA polymerase subunits
b. They bind DNA as well as proteins
c. They play catalytic roles in transcription
d. They unwind DNA to promote polymerase binding
e. Their roles are only for activation of transcription
The answer is apparently B. but I thought C. was equally correct. What am I missing?
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Hmm, I don't think C is correct. Enhancers are the ones that increase the rate of transcription when an activator is bound to it. They are distal control elements.
As for B, it could refer to how these proteins bind to the DNA itself, as well as bind to other proteins to increase the efficiency of transcription (could help in orientation of RNA polymerase, for example).
Hope this helps you! =)
As for B, it could refer to how these proteins bind to the DNA itself, as well as bind to other proteins to increase the efficiency of transcription (could help in orientation of RNA polymerase, for example).
Hope this helps you! =)