PPT Slide
20.1 Cell-to-cell communication by extracellular signaling usually involves six steps
20.1 Signaling molecules operate over various distances in animals
20.1 Hormones can be classed based on their solubility and receptor location
20.1 Cell-surface receptors belong to four major classes
20.1 The effects of many hormones are mediated by second messengers
20.1 Other conserved proteins function in signal transduction: GTPase switch proteins
20.1 Other conserved proteins function in signal transduction: protein kinases
20.1 Other conserved proteins function in signal transduction: adapter proteins
20.1 Common signaling pathways are initiated by different receptors in a class
20.3 G protein-coupled receptors & their effectors
20.3 Stimulation of ?-adrenergic receptors leads to a rise in cAMP
20.3 Demonstration that ?-adrenergic receptors mediate the induction of cAMP synthesis
20.3 Critical features of catecholamines and their receptors have been identified
20.3 Demonstration of functional domains in G protein-coupled receptors
20.3 The structure of adenylyl cyclase
20.3 Trimeric Gs protein links ?-adrenergic receptors and adenylyl cyclase
G-protein Animation
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Home Page: http://muskingum.edu/~brianb/Cellphys/Cellphys.html