title: Lasalocid-catalyzed proton conductance in Streptococcus bovis as affected by extracellular potassium.
abstract: The effect of extracellular potassium on lasalocid-catalyzed proton conductance in Streptococcus bovis 24 was measured by using the fluorescent probe 9-aminoacridine. Increasing external potassium concentration resulted in decreased proton flux into S. bovis cells exposed to the ionophore. These results suggest that lasalocid catalyzes K+/H+ exchange diffusion in S. bovis cells.
authors.affiliation: Animal Science Department, University of Florida, Gainesville 32611.
authors.forename: W R
authors.initials: WR
authors.lastname: Schwingel
authors.forename: D B
authors.initials: DB
authors.lastname: Bates
authors.forename: S C
authors.initials: SC
authors.lastname: Denham
authors.forename: D K
authors.initials: DK
authors.lastname: Beede
mesh_terms: D000609:Aminoacridines; D001692:Biological Transport / Q000187:drug effects; D005470:Fluorometry; D007832:Lasalocid / Q000494:pharmacology*; D011188:Potassium / Q000494:pharmacology*; D013291:Streptococcus / Q000187:drug effects / Q000378:metabolism*
chemical_list: D000609:Aminoacridines; D011188:Potassium; D007832:Lasalocid