This preview shows page 1. Sign up to view the full content.
Unformatted text preview: relaxation. binds to the active site of phosphodiesterase and inhibits it making it a competitive inhibitor. In reception, binding of epinephrine to G protein-coupled receptor is present (1 molecule). During transduction, it multiplies until it reaches one hundred million in the response. The kinase is going to phosphorylate protein kinase A since its activated by cAMP. The epinephrine is the first messenger is on the surface since the G protein-coupled receptor is at the plasma membrane. Since the GTP is not attached to GDP, the G protein is always active and the water concentration is unbalanced. 8.1, 8.2, and 8.3 and 55.3 need to be read....
View Full Document
- Fall '09