Signal transduction pathways video review sheet 1. signal transduction pathways start with a in the form of a message that is into within the cell. 2. two types: a. protein b. cascade: a phosphate that has is passed from one chemical to another until it eventually has an action. 3. example with g-protein in the liver: a. messenger: b. the messenger docks with the receptor – specifically the c. ligand: a chemical that can’t make its way across a d. when epinephrine binds it changes the shape of the g-protein. what is released? e. adenylyl cyclase in initially f. when the alpha subunit is bound to adenylyl cyclase it converts: to g. camp is a messenger h. protein kinase is inactivated when the portions are bound. i. camp binds to the regulatory portions and releases the j. the catalytic portions of protein kinase become phosphorylated and are activated they then can act on throughout the cell. 4. how did you do when you played dora the explorer? 5. how can this whole process be "amplified"?