Multicellular organisms must be able to adapt to cellular events to accommodate prevailing conditions. Sensory-response circuits operate by making use of a phosphorylation control mechanism known as the "two-component system." Sections in Two-Component Signaling Systems, Part B include: - Structural Approaches - Reconstitution of Heterogeneous Systems - Intracellular Methods and Assays - Genome-Wide Analyses of Two-Component Systems - Presents detailed protocols - Includes troubleshooting tips