title: Identification of neighboring protein pairs in the Escherichia coli 30 S ribosomal subunit by crosslinking with methyl-4-mercaptobutyrimidate.
mesh_terms: D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000648:ultrastructure*; D008094:Lithium; D046911:Macromolecular Substances; D011485:Protein Binding; D011487:Protein Conformation; D012269:Ribosomal Proteins / Q000302:isolation & purification; D012270:Ribosomes / Q000648:ultrastructure*; D013438:Sulfhydryl Compounds
chemical_list: D046911:Macromolecular Substances; D012269:Ribosomal Proteins; D013438:Sulfhydryl Compounds; D008094:Lithium