09Regulation - Positive Control of the lac Operon CAP...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Prokaryotic Gene Regulation Why regulate expression? Levels of regulation Transcription regulation: lac operon glucose lactose β -galactosidase galactose allolactose β -galactoside permease β -galactoside transacetylase polycistronic mRNA constitutive repressor operator operon leaky inducible lac operon and lacI mutations I + P O c Z + Y + A F’ I P + O + Z Y + A + / I + P + O c Z + Y + A + F’ I s P + O c Z Y + A / I P + O + Z + Y A F’ I + P + O + Z + Y A + / I + P O + Z + Y + A + uninducible cis trans negative regulation positive regulation
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Positive Control of the lac Operon CAP cyclic adenosine monophosphate (cAMP) Transcription regulation: trp operon repressible attenuation Eukaryotic Gene Regulation Transcriptional regulation of genes controlled by steroids response element activator enhancer represssor silencer Transcriptional regulation of a gene for galactose metabolism 16...
View Full Document

This note was uploaded on 04/22/2008 for the course BIO 325 taught by Professor Saxena during the Spring '08 term at University of Texas.

Ask a homework question - tutors are online