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AfCS-Nature Signaling Gateway
Joint resource from Alliance for Cellular Signaling, featuring meetings, workshops, primary research papers, reviews, database of molecules and protein data, updated in Durham, NC and editorial office at Nature Publishing Group, London, UK. Full access requires registration.
http://www.signaling-gateway.org/
Cell Signaling Technology, Inc.
Phospho-specific Antibodies and other Innovative Discovery Tools for Cell Signaling Research.
http://www.cellsignal.com/
