title: RNA--protein interactions in the ribosome. IV. Structure and properties of binding sites for proteins S4, S16/S17 and S20 in the 16S RNA.
mesh_terms: D001483:Base Sequence; D001665:Binding Sites; D011485:Protein Binding; D012335:RNA, Ribosomal / Q000378:metabolism*; D012269:Ribosomal Proteins / Q000378:metabolism*
chemical_list: D012335:RNA, Ribosomal; D012269:Ribosomal Proteins