7k00

Structure of the Bacterial Ribosome at 2 Angstrom Resolution

spinqualitylabelsall models 7k00, resolution 1.98Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 7k00 is a 10 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 1.98Å Ligands: 1MG, 2MA, 2MG, 3TD, 4D4, 4OC, 5MC, 5MU, 6MZ, D2T, G7M, H2U, IAS, MA6, MEQ, MG, MS6, OMC, OMG, OMU, PAR, PSU, SPD, SPM, UR3, ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function RS2_ECOLI Publication Abstract from PubMed Using cryo-electron microscopy (cryo-EM), we determined the structure of the Escherichia coli 70S ribosome with a global resolution of 2.0 A. The maps reveal unambiguous positioning of protein and RNA residues, their detailed chemical interactions, and chemical modifications. Notable features include the first examples of isopeptide and thioamide backbone substitutions in ribosomal proteins, the former likely conserved in all domains of life. The maps also reveal extensive solvation of the small (30S) ribosomal subunit, and interactions with A-site and P-site tRNAs, mRNA, and the antibiotic paromomycin. The maps and models of the bacterial ribosome presented here now allow a deeper phylogenetic analysis of ribosomal components including structural conservation to the level of solvation. The high quality of the maps should enable future structural analysis of the chemical basis for translation and aid the development of robust tools for cryo-EM structure modeling and refinement. Structure of the bacterial ribosome at 2 A resolution.,Watson ZL, Ward FR, Meheust R, Ad O, Schepartz A, Banfield JF, Cate JH Elife. 2020 Sep 14;9. pii: 60482. doi: 10.7554/eLife.60482. PMID:32924932 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Ribosome 3D structures

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