Cell Signaling - Yesterday, Today and Tomorrow Initiation: Extracellular and Membrane Events Molecular Recognition Vertical Receptors Horizontal Receptors Membrane Proximal Events Transmission: Effectors and Cytosolic Events Protein Phosphorylation Transmission: Effectors and Cytosolic Events Calcium Mobilization Lipid-Derived Second Messengers Protein Proximity Interactions Cyclic Nucleotides G Proteins Developmental Signaling Nuclear Responses: Gene Expression and Translation Nuclear Receptors Transcription Factors Damage/Stress Responses Translational Control Events in Intracellular Compartments Cell-Cell and Cell-Matrix Interactions