In C. elegans, social and solitary feeding behavior can be determined by a single amino acid change in a G protein–coupled receptor. A new study identifies ligands for this receptor and suggests how changes in behavior evolve at the molecular level.
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Potter, C., Luo, L. Food for thought: a receptor finds its ligand. Nat Neurosci 6, 1119–1120 (2003). https://doi.org/10.1038/nn1103-1119
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DOI: https://doi.org/10.1038/nn1103-1119
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