title: A ribonucleoprotein core in the 50 S ribosomal subunit of Escherichia coli.
mesh_terms: D001665:Binding Sites; D004926:Escherichia coli / Q000648:ultrastructure; D009024:Morphogenesis; D009698:Nucleoproteins; D011485:Protein Binding; D012335:RNA, Ribosomal / Q000378:metabolism; D012260:Ribonucleases; D012261:Ribonucleoproteins; D012269:Ribosomal Proteins / Q000378:metabolism; D012270:Ribosomes / Q000648:ultrastructure*; D014357:Trypsin
chemical_list: D009698:Nucleoproteins; D012335:RNA, Ribosomal; D012261:Ribonucleoproteins; D012269:Ribosomal Proteins; D012260:Ribonucleases; D014357:Trypsin