“…Chemicals. The following compounds were used in this study: penicillin G sodium (1,650 units/mg), rifampin, and 2, 4-dinitrophenol (Mann Research Lab, New York, N.Y.); D-cycloserine, streptomycin sulfate, actinomycin D, lysozyme from egg white (1,800 units/mg), ATP disodium salt (Schwarz Mann, Orangeburg, N.Y.); chloramphenicol, kanamycin, 5-fluorouracil, hydroxyurea, gramicidin, oligomycin, sodium lauryl sulfate (Sigma Co., St. Louis, Mo. ); tetracycline-hydrochloride and puromycin (Nutritional Biochemicals Corp., Cleveland, Ohio); sodium cyanide, sodium azide, sodium deoxycholate (Fisher Scientific Co., Fairlawn, N.J.).…”