Reaction of ribosomal sulfhydryl groups with 5,5'-dithiobis(2-nitrobenzoic acid).

Benzoates Carbon Isotopes Cell Fractionation Centrifugation, Density Gradient Chromatography, Ion Exchange Cystine/analysis Disulfides Electrophoresis Escherichia coli/analysis,cytology Ethylmaleimide Kinetics Nitro Compounds Poly A-U Protein Binding Protein Denaturation RNA, Transfer Ribosomes/analysis Sodium Dodecyl Sulfate Spectrophotometry, Ultraviolet Sulfhydryl Compounds/analysis Sulfhydryl Reagents Sulfur Isotopes Time Factors Urea

Benzoates Carbon Isotopes Disulfides Nitro Compounds Sulfhydryl Compounds Sulfhydryl Reagents Sulfur Isotopes Poly A-U Sodium Dodecyl Sulfate Cystine Urea RNA, Transfer Ethylmaleimide