Chapter 08: Transcription & RNA Processing Flashcards
What enzyme adds the 5’ cap?
Guanylyl transferase
What are the three post-transcriptional processes?
Addition of 5’ cap, addition of poly-A tail, and splicing of introns
What is the nucleotide used as the 5’ cap?
Methylated guanine
How long is the poly-A tail?
~150 adenines
What is the addition of the poly-A tail called?
Polyadenylation
What methylates the 5’ cap?
Methyl transferase
What does TBP stand for?
TATA-binding protein
What does TAF stand for?
TATA-binding associated factor
What is TFIID composed of?
TBP + TAF
What is it called when TFIID binds at the TATA box?
Initial committed complex
What is formed when the initial committed complex is bound with TFIIB, TFIIF, and RNA pol II?
Minimal initiation complex
TATA, CAAT, GC, and OCT boxes are examples of what?
Promoter or consensus sequences
TATA, CAAT, GC, and OCT boxes are found in what kind of organism?
Eukaryotes