Cell_Signaling_Guide

Cell_Signaling_Guide - 8. Define the term second messenger....

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture Objectives - Cell Signaling 1. List and briefly define the three stages of cell signaling. 2. Describe the nature of a ligand-receptor interaction and state how such interactions initiate a signal-transduction system. 3. State where signal receptors may be located in target cells. 4. Compare and contrast G-protein-linked receptors and tyrosine-kinase receptors. 5. Describe two advantages of using a multistep pathway in the transduction stage of cell signaling. 6. Describe how phosphorylation propagates signal information. 7. Explain how protein phosphatases turn off signal-transduction pathways.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 8. Define the term second messenger. Briefly describe the role of these molecules in signaling pathways. 9. Describe how cyclic AMP is formed and how it propagates signal information in target cells. 10. Describe how signal amplification is accomplished in target cells. Key Words adenylyl cyclase cyclic AMP (cAMP) G protein G-protein-linked receptor ligand protein kinase protein phosphatase reception receptor tyrosine kinase response second messenger signal transduction pathway transduction...
View Full Document

This note was uploaded on 08/05/2009 for the course BILD 1 taught by Professor Boulanger during the Fall '08 term at UCSD.

Ask a homework question - tutors are online