title: The subunit interface of the Escherichia coli ribosome. Crosslinking of 30 S protein S9 to proteins of the 50 S subunit.
mesh_terms: D001345:Autoradiography; D002499:Centrifugation, Density Gradient; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000032:analysis*; D008970:Molecular Weight; D010446:Peptide Fragments / Q000032:analysis; D011485:Protein Binding; D012269:Ribosomal Proteins / Q000032:analysis*; D012270:Ribosomes / Q000032:analysis*
chemical_list: D010446:Peptide Fragments; D012269:Ribosomal Proteins