#Question id: 4486
#Unit 3. Fundamental Processes
Activators can recruit factors needed for polymerase to initiate or elongate transcription. In all of these functions, the activator is merely recruiting proteins to the promoter. In bacteria, RNA polymerase is the only protein that needs to be recruited; this is not the case in eukaryotes. Indeed, in eukaryotes, a given activator might work in all three ways:
|
1. Recruitment of nucleosome modifiers and remodelers |
i. “open” the promoter |
|
2. Recruitment of general transcription factors and mediators |
ii. That stimulate Pol II initiation and elongation |
|
3. Recruitment of protein complexes |
iii. To recruit PTEFb/SEC |
#Question id: 4066
#Unit 3. Fundamental Processes
Specific DNA control elements in promoters can
a. interact with general transcription factors.
b. interact with repressor proteins.
c. interact with activator proteins.
d. remain unavailable because of condensed chromatin.
#Question id: 2479
#Unit 2. Cellular Organization
Growing microtubule ends are normally stabilized by:
#Question id: 1726
#Unit 4. Cell Communication and Cell Signaling
What is CD8 a marker of?
#Question id: 1746
#Unit 4. Cell Communication and Cell Signaling
Which is the first of the following genes to be upregulated subsequent to T-cell activation?