Chapter 10 Flashcards
SMC Proteins
Structural Maintenance Proteins:
- Cohesin
- Condensin
- Separase
Do bacteria have histones?
No. They just have core proteins
Do eukaryotes or bacteria undergo transcription faster?
Faster transcription in bacteria
What is ubiquitination used for?
Protein degradation
HAT
Histone Acetylation
- Opens (activates) DNA by exposing promoter regions
HDAT
Histone Deacetylation
* Methylation!
- Closes (deactivates) DNA by hiding promoter regions
Chromatin Remodeling Complexes
Reposition Nucleosome
Eject
Replace
Histone Modifying Enzymes
Histone N-Tails are modified
- Cis
- Trans
What is the Histone Code
The “code of conduct” for unrolling DNA
- Modifications
- Kinases
-> 3. Trans reposition using bromodomain or chromodomain
Once you start to remodel, there will be a cascade of events (
What do Kinase do?
Activate proteins that will do some kind of trans repositioning (using bromodomains or chromodomains) Kinase Phosphorylate