o These cells respond to the environment and communicate with each other with incredible efficiency. For example, take cells that make their own light: They won?t do it unless there are other cells of the same type around. It only works if there?s a certain density. They send out signals that act sort of like casting votes. This kind of quorum sensing is very important with respect to pathogens. Translational control: o The ?stringent response?: a type of translational control When bacteria are starved of nutrients, they immediately shut down gene expression and other metabolic activities. Binding of an uncharged tRNA to the A-site in the absence of amino acids. The Ribosome stalls, and RNAase shuts down This is a global control mechanism that?s sensed by the ribosome Review of gene regulation in bacteria
Want to see the other 2 page(s) in Properties p16.docx?JOIN TODAY FOR FREE!