BIO-0013 Lecture Notes - Incubate (Festival), Lac Operon, Galactose
Document Summary
11 20 12: this is a prokaryote because transcription and translation are occurring simultaneously, the n terminus of a protein is made first, puromycin, antibiotic that inhibits bacterial transformation, why study gene control in bacteria, roles bacteria play in our lives: Environment: making soil, controlling insects, snow formation: bacteria are some of the most successful and abundant organisms on earth, why: fast and easy replication, high mutation rate, able to adapt, simple genome, control of gene expression in bacteria, dna(cid:224)rna(cid:224)protein(cid:224)post tl, ex: lactose metabolism. Post translational control: protein activation or inhibition, chemical modification, fastest way of control, model system, escherichia coli, uses a wide variety of foods for atp production via glycolysis and the. Why do e. coli prefer glucose to lactose: milk sugar is a disaccharide, lactose (cid:224) glucose + galactose, = catabolism, galactose has to be modified before glycolysis can take place.
