Regulation of prokaryotic gene expression
Transcriptional control of prokaryotic can be done by:
b. Attenuation control in the histidine operon
The Histidine Operon
Regulation of Eukaryotic Gene Expression
Stimulation of transcription by enhancer and its ass. TF
General Transcription Factors
Common to most genes.
TFIID must bind to TATA box before RNA polymerase can bind.
Other e.g: SP-1
Specific Transcription Factors
Binds to enhancer regions, or in a few cases to silencers and modulate the formation of initiation complex, thus regulating rate of initiation of transcription.
E.g: Steroid receptors