1sry

REFINED CRYSTAL STRUCTURE OF THE SERYL-TRNA SYNTHETASE FROM THERMUS THERMOPHILUS AT 2.5 ANGSTROMS RESOLUTION

spinqualitylabelsall models 1sry, resolution 2.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1sry is a 2 chain structure with sequence from "flavobacterium_thermophilum"_yoshida_and_oshima_1971 "flavobacterium thermophilum" yoshida and oshima 1971. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Activity: Serine--tRNA ligase, with EC number 6.1.1.11 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [SYS_THET2] Catalyzes the attachment of serine to tRNA(Ser). Is also probably able to aminoacylate tRNA(Sec) with serine, to form the misacylated tRNA L-seryl-tRNA(Sec), which will be further converted into selenocysteinyl-tRNA(Sec).[HAMAP-Rule:MF_00176] 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 three-dimensional structure of the seryl-tRNA synthetase from Thermus thermophilus has been determined and refined at 2.5 A resolution. The final model consists of a dimer of 421 residues each and 190 water molecules. The R-factor is 18.4% for all the data between 10 and 2.5 A resolution. The structure is very similar to that of the homologous enzyme from Escherichia coli, with an r.m.s. difference of 1.5 A for the 357 alpha-carbon atoms considered equivalent. The comparison of the two structures indicates increased hydrophobicity, reduced conformational entropy and reduced torsional strain as possible mechanisms by which thermostability is obtained in the enzyme from the thermophile. Refined crystal structure of the seryl-tRNA synthetase from Thermus thermophilus at 2.5 A resolution.,Fujinaga M, Berthet-Colominas C, Yaremchuk AD, Tukalo MA, Cusack S J Mol Biol. 1993 Nov 5;234(1):222-33. PMID:8230201 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Aminoacyl tRNA synthetase 3D structures

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