4v4i | pdb_00004v4i

Crystal Structure of a 70S Ribosome-tRNA Complex Reveals Functional Interactions and Rearrangements.

spinqualitylabelsall models 4v4i, resolution 3.71Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4v4i is a 10 chain structure with sequence from Thermus thermophilus HB27. This structure supersedes the now removed PDB entries 1vsa, 2ow8, 1vs9 and 2i1c. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: 2MG, 4OC, 4SU, 5MC, 5MU, 7MG, H2U, M2G, MA6, MIA, PSU, UR3 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function RL1_THET2 Binds directly to 23S rRNA. The L1 stalk is quite mobile in the ribosome, and is involved in E site tRNA release (By similarity). Protein L1 is also a translational repressor protein, it controls the translation of the L11 operon by binding to its mRNA (By similarity). Publication Abstract from PubMed Our understanding of the mechanism of protein synthesis has undergone rapid progress in recent years as a result of low-resolution X-ray and cryo-EM structures of ribosome functional complexes and high-resolution structures of ribosomal subunits and vacant ribosomes. Here, we present the crystal structure of the Thermus thermophilus 70S ribosome containing a model mRNA and two tRNAs at 3.7 A resolution. Many structural details of the interactions between the ribosome, tRNA, and mRNA in the P and E sites and the ways in which tRNA structure is distorted by its interactions with the ribosome are seen. Differences between the conformations of vacant and tRNA-bound 70S ribosomes suggest an induced fit of the ribosome structure in response to tRNA binding, including significant changes in the peptidyl-transferase catalytic site. Crystal structure of a 70S ribosome-tRNA complex reveals functional interactions and rearrangements.,Korostelev A, Trakhanov S, Laurberg M, Noller HF Cell. 2006 Sep 22;126(6):1065-77. Epub 2006 Sep 7. PMID:16962654 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Ribosomal protein THX 3D structures Ribosome 3D structures Transfer RNA (tRNA)

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