4V63
Structural basis for translation termination on the 70S ribosome.
This is a non-PDB format compatible entry.
Summary for 4V63
Entry DOI | 10.2210/pdb4v63/pdb |
Related | 3D5B 3D5C 3D5D |
Descriptor | 16S RRNA, 30S ribosomal protein S8, 30S ribosomal protein S9, ... (57 entities in total) |
Functional Keywords | ribosome, ribonucleoprotein, ribosomal protein, rna-binding, rrna-binding, metal-binding, zinc-finger, trna-binding, protein biosynthesis |
Biological source | Thermus thermophilus More |
Cellular location | Cytoplasm : Q72HB8 |
Total number of polymer chains | 112 |
Total formula weight | 4627220.30 |
Authors | Laurberg, M.,Asahara, H.,Korostelev, A.,Zhu, J.,Trakhanov, S.,Noller, H.F. (deposition date: 2008-05-16, release date: 2014-07-09, Last modification date: 2024-11-20) |
Primary citation | Laurberg, M.,Asahara, H.,Korostelev, A.,Zhu, J.,Trakhanov, S.,Noller, H.F. Structural basis for translation termination on the 70S ribosome Nature, 454:852-857, 2008 Cited by PubMed Abstract: At termination of protein synthesis, type I release factors promote hydrolysis of the peptidyl-transfer RNA linkage in response to recognition of a stop codon. Here we describe the crystal structure of the Thermus thermophilus 70S ribosome in complex with the release factor RF1, tRNA and a messenger RNA containing a UAA stop codon, at 3.2 A resolution. The stop codon is recognized in a pocket formed by conserved elements of RF1, including its PxT recognition motif, and 16S ribosomal RNA. The codon and the 30S subunit A site undergo an induced fit that results in stabilization of a conformation of RF1 that promotes its interaction with the peptidyl transferase centre. Unexpectedly, the main-chain amide group of Gln 230 in the universally conserved GGQ motif of the factor is positioned to contribute directly to peptidyl-tRNA hydrolysis. PubMed: 18596689DOI: 10.1038/nature07115 PDB entries with the same primary citation |
Experimental method | X-RAY DIFFRACTION (3.207 Å) |
Structure validation
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