Regulatory Sequences Flashcards
1
Q
Definition of Regulatory Sequences
A
A sequence of DNA that binds a regulatory protein and thereby regulate gene expression
2
Q
What are the components of regulatory sequences?
A
- Promoter
- Enhancers
- Silencers
3
Q
What is the location and function of promoter?
A
- upstream of gene
- attracts and binds to TFs and RNA polymerase, forming TIC
4
Q
What is the location and function of enhancers?
A
- far away from promoter
- binds to activator (a regulatory TG), increases level of transcription by helping to form TIC
5
Q
What is the function of silencer?
A
-binding of repressor decreases transcription rate
