title: Crystallization and preliminary X-ray diffraction data of the second and archaebacterial-type aspartyl-tRNA synthetase from Thermus thermophilus.
abstract: The archaebacterial-type aspartyl-tRNA synthetase (AspRS2) from the thermophilic eubacterium Thermus thermophilus was crystallized using the hanging-drop vapour-diffusion method. Crystals grew at pH 9.5 in the presence of PEG 8000 and NaCl. A native diffraction data set has been collected at 2.5 A resolution using synchrotron radiation and cryocooling. Crystals belong to the orthorhombic space group P2(1)2(1)2(1), with unit-cell parameters a = 57.3, b = 121.9, c = 166.9 A and V(M) = 3.03 A(3) Da(-1). There is one dimer of M(r) 96 000 per asymmetric unit. A molecular-replacement analysis gave solutions for the rotation and translation functions.
authors.affiliation: Département "Mécanismes et Macromolécules de la Synthèse Protéique et Cristallogenèse", UPR 9002, Institut de Biologie Moléculaire et Cellulaire du CNRS, 15 Rue René Descartes, F-67084 Strasbourg CEDEX, France.
authors.forename: C
authors.initials: C
authors.lastname: Charron
authors.forename: H
authors.initials: H
authors.lastname: Roy
authors.forename: B
authors.initials: B
authors.lastname: Lorber
authors.forename: D
authors.initials: D
authors.lastname: Kern
authors.forename: R
authors.initials: R
authors.lastname: Giegé
mesh_terms: D001105:Archaea / Q000201:enzymology; D001226:Aspartate-tRNA Ligase / Q000737:chemistry*; D003460:Crystallization; D018360:Crystallography, X-Ray; D011487:Protein Conformation; D016963:Thermus thermophilus / Q000201:enzymology*
chemical_list: D001226:Aspartate-tRNA Ligase