N-ethyl maleimide as a probe for the study of functional sites and conformations of 30 S ribosomal subunits.

Bacterial Proteins/analysis Binding Sites Carbon Radioisotopes Centrifugation, Density Gradient Electrophoresis, Polyacrylamide Gel Escherichia coli/analysis,cytology,drug effects,metabolism Ethylmaleimide/pharmacology Hot Temperature Magnesium/pharmacology Methionine Molecular Conformation Phosphorus Radioisotopes Protein Binding Protein Conformation RNA, Bacterial/metabolism RNA, Transfer/metabolism Ribosomes/analysis,drug effects,metabolism Sulfhydryl Compounds/analysis Sulfur Radioisotopes

Bacterial Proteins Carbon Radioisotopes Phosphorus Radioisotopes RNA, Bacterial Sulfhydryl Compounds Sulfur Radioisotopes RNA, Transfer Methionine Magnesium Ethylmaleimide