title: On the meaning of effects of substrate structure on biological transport.
mesh_terms: D000596:Amino Acids / Q000378:metabolism*; D000818:Animals; D001665:Binding Sites; D001692:Biological Transport; D002247:Carbon Isotopes; D002286:Carcinoma, Ehrlich Tumor / Q000188:drug therapy / Q000378:metabolism; D004926:Escherichia coli / Q000378:metabolism; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D051379:Mice; D008954:Models, Biological; D008968:Molecular Conformation; D011188:Potassium / Q000494:pharmacology; D011485:Protein Binding; D011955:Receptors, Drug; D012964:Sodium / Q000494:pharmacology; D013056:Spectrophotometry, Ultraviolet; D013329:Structure-Activity Relationship
chemical_list: D000596:Amino Acids; D002247:Carbon Isotopes; D011955:Receptors, Drug; D012964:Sodium; D011188:Potassium