The “Cell Signaling Application and Product Guide” from !%Millipore Corp.%! includes descriptions of numerous cell signaling pathways, as well as Upstate products, including antibodies, enzymes and kits. The publication covers research tools such as epigenetics and chromatin function products, transcription factors and nuclear receptors, and kinases, phosphatases and G proteins. Along with Western blotting products and the Mill-Q laboratory water system, the guide details multiplexing and drug discovery services including the KinaseProfiler services and a family of multiplex immunoassay kits. A cell signaling primer is included, as are protocols and troubleshooting tips.