Enhancers
- [[promoters]] of promoters
- instructing the promoter when, where, and at what levels to turn on gene transcription
- reside on open [[chromatin]]
- activated by binding of [[Transcription factor]]
- can be cis (on the same chromosome) or trans (on another chromosome) from the gene they regulate
- each gene can have multiple enhancers
- same enhancer can control different genes