01:119:115 Lecture Notes - Lecture 16: Methylation, Cyclic Adenosine Monophosphate, Intron

• School: Rutgers University
• Department: Biological Science
• Course: 01:119:115
• Professor: All

Document Summary

Protein activity of protein/enzyme: prokaryotic cells, simple, transcriptional level control (where gene regulation is concentrated, controls how much mrna is produced, rapid response to environment. Proteins with 2 active sites anesthetic enzyme. The trp operon is a repressible operon. Their synthesis is repressed by high levels of the end product. An inducer inactivates the repressor to turn the lac operon on. These 3 genes are breaking down in the catabolic pathway of lactose. Promoter consists of rna polymerase and operator. When active repressor binds to operator, rna polymerase isn"t able to work. When there is no lactose to break down. It would be a waste of energy to continuously use this. This is a catabolic pathway, these enzymes are used to break down not for synthesis. Some operons are subject to positive control through a catabolite activator protein (cap), an activator of transcription. When glucose is scarce, cap is activated by binding with cyclic.