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. 2008 Jan 30;116(5):593–598. doi: 10.1289/ehp.11031

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Pharmacophore analysis between fMLP and substance P. Similar chemical features shared by these two peptides are illustrated by three-dimensional relationships with the highest fit values. fMLP resembles the amino acid sequence (Phe-Phe-Gly-Leu-Met) of the C-terminus of substance P. Hydrogen bond acceptor (HBA), green; negative ionizable, dark blue; hydrophobic, light blue.