1R2W
Coordinates of L11 with 58nts of 23S rRNA fitted into the cryo-EM map of the 70S ribosome
Summary for 1R2W
| Entry DOI | 10.2210/pdb1r2w/pdb |
| Related | 1FFK 1QZB 1QZC 1QZD 1R2X |
| EMDB information | 1056 |
| Descriptor | 58nts of 23S rRNA, 50S ribosomal protein L11 (2 entities in total) |
| Functional Keywords | rna, ribosomal protein, rna binding protein-rna complex, rna binding protein/rna |
| Biological source | Thermotoga maritima |
| Total number of polymer chains | 2 |
| Total formula weight | 33802.99 |
| Authors | Valle, M.,Zavialov, A.,Li, W.,Stagg, S.M.,Sengupta, J.,Nielsen, R.C.,Nissen, P.,Harvey, S.C.,Ehrenberg, M.,Frank, J. (deposition date: 2003-09-30, release date: 2003-11-04, Last modification date: 2024-02-14) |
| Primary citation | Valle, M.,Zavialov, A.,Li, W.,Stagg, S.M.,Sengupta, J.,Nielsen, R.C.,Nissen, P.,Harvey, S.C.,Ehrenberg, M.,Frank, J. Incorporation of aminoacyl-tRNA into the ribosome as seen by cryo-electron Microscopy Nat.Struct.Biol., 10:899-906, 2003 Cited by PubMed Abstract: Aminoacyl-tRNAs (aa-tRNAs) are delivered to the ribosome as part of the ternary complex of aa-tRNA, elongation factor Tu (EF-Tu) and GTP. Here, we present a cryo-electron microscopy (cryo-EM) study, at a resolution of approximately 9 A, showing that during the incorporation of the aa-tRNA into the 70S ribosome of Escherichia coli, the flexibility of aa-tRNA allows the initial codon recognition and its accommodation into the ribosomal A site. In addition, a conformational change observed in the GTPase-associated center (GAC) of the ribosomal 50S subunit may provide the mechanism by which the ribosome promotes a relative movement of the aa-tRNA with respect to EF-Tu. This relative rearrangement seems to facilitate codon recognition by the incoming aa-tRNA, and to provide the codon-anticodon recognition-dependent signal for the GTPase activity of EF-Tu. From these new findings we propose a mechanism that can explain the sequence of events during the decoding of mRNA on the ribosome. PubMed: 14566331DOI: 10.1038/nsb1003 PDB entries with the same primary citation |
| Experimental method | ELECTRON MICROSCOPY (9 Å) |
Structure validation
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