Binding of GOx, GOx-S36, and GOx-S120 to various oral bacterial species determined by the detection of GOx activities after incubation of yeast growth medium diluted 64 times in bacterium coated microtiter plates. The bars for S. sobrinus, S. sanguinis, and S. mutans represent the averages for two S. sobrinus strains, two S. sanguinis strains, and five S. mutans strains. The other bars represent the results for one strain of each species.