title: X537A: a Ca2+ ionophore with a polarity-dependent and complexation-dependent fluorescence signal.
mesh_terms: D000900:Anti-Bacterial Agents; D001464:Barium; D001565:Benzoates; D001665:Binding Sites; D001692:Biological Transport; D002118:Calcium; D005453:Fluorescence; D007700:Kinetics; D008433:Mathematics; D008567:Membranes, Artificial; D008954:Models, Biological; D008968:Molecular Conformation; D010713:Phosphatidylcholines; D011188:Potassium; D011789:Quantum Theory; D013050:Spectrometry, Fluorescence
chemical_list: D000900:Anti-Bacterial Agents; D001565:Benzoates; D008567:Membranes, Artificial; D010713:Phosphatidylcholines; D001464:Barium; D011188:Potassium; D002118:Calcium