title: Crystallization and preliminary X-ray diffraction analysis of the NAD-dependent non--phosphorylating GAPDH of the hyperthermophilic archaeon Thermoproteus tenax.
abstract: Recombinant non-phosphorylating NAD(+)-dependent glyceraldehyde-3-phosphate dehydrogenase (GAPN) of the hyperthermophilic crenarchaeote Thermoproteus tenax has been overexpressed, purified and crystallized using the hanging-drop vapour-diffusion technique. Crystals of different habits were obtained from several precipitant solutions (salts and polyethylene glycols). Preliminary X-ray analysis was performed with crystals grown in ammonium formate, which belonged to the primitive hexagonal space group P622, and had unit-cell parameters a = b = 184.8, c = 133.0 A, gamma = 120 degrees. Assuming a molecular weight of 55 kDa, a Matthews parameter of 3.3 A(3) Da(-1) is calculated assuming two molecules per asymmetric unit. The diffraction limit of these crystals is 2.5 A resolution.
authors.affiliation: FB 9 Mikrobiologie, Universität-GH Essen, Universitätsstrasse 5, D-45117 Essen, Germany. nina.brunner@uni-essen.de
authors.forename: N A
authors.initials: NA
authors.lastname: Brunner
authors.forename: D A
authors.initials: DA
authors.lastname: Lang
authors.forename: M
authors.initials: M
authors.lastname: Wilmanns
authors.forename: R
authors.initials: R
authors.lastname: Hensel
mesh_terms: D001483:Base Sequence; D003460:Crystallization; D018360:Crystallography, X-Ray; D017931:DNA Primers / Q000235:genetics; D004926:Escherichia coli / Q000235:genetics; D005987:Glyceraldehyde-3-Phosphate Dehydrogenases / Q000737:chemistry* / Q000235:genetics / Q000302:isolation & purification*; D011994:Recombinant Proteins / Q000737:chemistry / Q000235:genetics / Q000302:isolation & purification; D019624:Thermoproteaceae / Q000201:enzymology* / Q000235:genetics
chemical_list: D017931:DNA Primers; D011994:Recombinant Proteins; D005987:Glyceraldehyde-3-Phosphate Dehydrogenases