4e51

Crystal structure of a histidyl-tRNA synthetase HisRS from Burkholderia thailandensis bound to histidine

spinqualitylabelsall models 4e51, resolution 2.65Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4e51 is a 2 chain structure with sequence from Burkholderia thailandensis E264. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: HIS Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [SYH_BURTA] Publication Abstract from PubMed Aminoacyl-tRNA synthetases (aaRSs) charge tRNAs with their cognate amino acid, an essential precursor step to loading of charged tRNAs onto the ribosome and addition of the amino acid to the growing polypeptide chain during protein synthesis. Because of this important biological function, aminoacyl-tRNA synthetases have been the focus of anti-infective drug development efforts and two aaRS inhibitors have been approved as drugs. Several researchers in the scientific community requested aminoacyl-tRNA synthetases to be targeted in the Seattle Structural Genomics Center for Infectious Disease (SSGCID) structure determination pipeline. Here we investigate thirty-one aminoacyl-tRNA synthetases from infectious disease organisms by co-crystallization in the presence of their cognate amino acid, ATP, and/or inhibitors. Crystal structures were determined for a CysRS from Borrelia burgdorferi bound to AMP, GluRS from Borrelia burgdorferi and Burkholderia thailandensis bound to glutamic acid, a TrpRS from the eukaryotic pathogen Encephalitozoon cuniculi bound to tryptophan, a HisRS from Burkholderia thailandensis bound to histidine, and a LysRS from Burkholderia thailandensis bound to lysine. Thus, the presence of ligands may promote aaRS crystallization and structure determination. Comparison with homologous structures shows conformational flexibility that appears to be a recurring theme with this enzyme class. Ligand co-crystallization of aminoacyl-tRNA synthetases from infectious disease organisms.,Moen SO, Edwards TE, Dranow DM, Clifton MC, Sankaran B, Van Voorhis WC, Sharma A, Manoil C, Staker BL, Myler PJ, Lorimer DD Sci Rep. 2017 Mar 16;7(1):223. doi: 10.1038/s41598-017-00367-6. PMID:28303005 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Aminoacyl tRNA synthetase 3D structures

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