2hw8

Structure of ribosomal protein L1-mRNA complex at 2.1 resolution.

spinqualitylabelsall models 2hw8, resolution 2.10Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2hw8 is a 2 chain structure with sequence from Thermus thermophilus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.1Å Ligands: BU1, K, MG, MSE Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function RL1_THETH The L1 stalk is quite mobile in the ribosome, and is involved in E site tRNA release (By similarity). Binds directly to 23S rRNA.[HAMAP-Rule:MF_01318] Protein L1 is also a translational repressor protein, it controls the translation of the L11 operon by binding to its mRNA (By similarity).[HAMAP-Rule:MF_01318] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed The crystal structure of a hybrid complex between the bacterial ribosomal protein L1 from Thermus thermophilus and a Methanococcus vannielii mRNA fragment containing an L1-binding site was determined at 2.1 A resolution. It was found that all polar atoms involved in conserved protein-RNA hydrogen bonds have high values of density in the electron-density map and that their hydrogen-bonding capacity is fully realised through interactions with protein atoms, water molecules and K(+) ions. Intermolecular contacts were thoroughly analyzed in the present crystals and in crystals of previously determined L1-RNA complexes. It was shown that extension of the RNA helices providing canonical helix stacking between open-open or open-closed ends of RNA fragments is a common feature of these and all known crystals of complexes between ribosomal proteins and RNAs. In addition, the overwhelming majority of complexes between ribosomal proteins and RNA molecules display crystal contacts formed by the central parts of the RNA fragments. These contacts are often very extensive and strong and it is proposed that they are formed in the saturated solution prior to crystal formation. Structure of the ribosomal protein L1-mRNA complex at 2.1 A resolution: common features of crystal packing of L1-RNA complexes.,Tishchenko S, Nikonova E, Nikulin A, Nevskaya N, Volchkov S, Piendl W, Garber M, Nikonov S Acta Crystallogr D Biol Crystallogr. 2006 Dec;62(Pt 12):1545-54. Epub 2006, Nov 23. PMID:17139090 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Ribosomal protein L1

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