title: Isolation and characterization of a potassium specific ionophore from Streptococcus faecalis.
abstract: The synthesis of a potassium and rubidium specific ionophore by Streptococcus faecalis has been proved, using bilayer measurements. The characteristics of this substance agree with the ones, published for free mobile carriers, such as valinomycin and the macrotetrolides.
mesh_terms: D001693:Biological Transport, Active; D002414:Cations, Monovalent; D013293:Enterococcus faecalis / Q000378:metabolism*; D007476:Ionophores / Q000302:isolation & purification / Q000378:metabolism*; D007700:Kinetics; D008567:Membranes, Artificial; D008954:Models, Biological; D010713:Phosphatidylcholines; D011188:Potassium / Q000378:metabolism*
chemical_list: D002414:Cations, Monovalent; D007476:Ionophores; D008567:Membranes, Artificial; D010713:Phosphatidylcholines; D011188:Potassium