title: All-atom homology model of the Escherichia coli 30S ribosomal subunit.
abstract: Understanding the structural basis of ribosomal function requires close comparison between biochemical and structural data. Although a large amount of biochemical data are available for the Escherichia coli ribosome, the structure has not been solved to atomic resolution. Using a new RNA homology procedure, we have modeled the all-atom structure of the E. coli 30S ribosomal subunit. We find that the tertiary structure of the ribosome core, including the A-, P- and E-sites, is highly conserved. The hypervariable regions in our structure, which differ from the structure of the 30S ribosomal subunit from Thermus thermophilus, are consistent with the cryo-EM map of the E. coli ribosome.
authors.affiliation: Theoretical Biology and Biophysics, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. ct@lanl.gov
authors.forename: Chang-Shung
authors.initials: CS
authors.lastname: Tung
authors.forename: Simpson
authors.initials: S
authors.lastname: Joseph
authors.forename: Kevin Y
authors.initials: KY
authors.lastname: Sanbonmatsu
mesh_terms: D001483:Base Sequence; D017124:Conserved Sequence; D004926:Escherichia coli / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism; D029968:Escherichia coli Proteins / Q000737:chemistry* / Q000378:metabolism; D008958:Models, Molecular; D011487:Protein Conformation; D012336:RNA, Ribosomal, 16S / Q000737:chemistry / Q000378:metabolism; D012269:Ribosomal Proteins / Q000737:chemistry* / Q000378:metabolism; D012270:Ribosomes / Q000737:chemistry* / Q000378:metabolism; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA; D016963:Thermus thermophilus / Q000235:genetics
chemical_list: D029968:Escherichia coli Proteins; D012336:RNA, Ribosomal, 16S; D012269:Ribosomal Proteins