title: Characterization of the glyceraldehyde 3-phosphate dehydrogenase from the extremely halophilic archaebacterium Haloarcula vallismortis.
abstract: Glyceraldehyde 3-phosphate dehydrogenase (EC 1.2.1.12) from the extremely halophilic archaebacterium Haloarcula vallismortis has been purified in a four step procedure to electrophoretic homogeneity. The enzyme is a tetramer with a relative molecular mass of 160,000. It is strictly NAD(+)-dependent and exhibits its highest activity in 2 mol/l KCl at 45 degrees C. Amino acid analysis and isoelectric focusing indicate an excess of acidic amino acids. Two parts of the primary sequence are reported. These peptides have been compared with glyceraldehyde 3-phosphate dehydrogenases from other archaebacteria, eubacteria and eucaryotes. The peptides show a high grade of similarity to glyceraldehyde 3-phosphate dehydrogenase from eucaryotes.
authors.affiliation: Institut für Physiologische Chemie, Ruhr-Universität Bochum, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Prüss
authors.forename: H E
authors.initials: HE
authors.lastname: Meyer
authors.forename: A W
authors.initials: AW
authors.lastname: Holldorf
mesh_terms: D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D000645:Ammonium Sulfate / Q000494:pharmacology; D000806:Angiotensin-Converting Enzyme Inhibitors / Q000737:chemistry* / Q000302:isolation & purification / Q000378:metabolism; D002845:Chromatography; D004591:Electrophoresis, Polyacrylamide Gel; D004795:Enzyme Stability / Q000187:drug effects; D005987:Glyceraldehyde-3-Phosphate Dehydrogenases / Q000737:chemistry* / Q000302:isolation & purification / Q000378:metabolism; D006216:Halobacteriaceae / Q000201:enzymology*; D006358:Hot Temperature; D007525:Isoelectric Focusing; D008969:Molecular Sequence Data; D008970:Molecular Weight; D010446:Peptide Fragments / Q000737:chemistry* / Q000302:isolation & purification / Q000378:metabolism; D011189:Potassium Chloride / Q000494:pharmacology; D012965:Sodium Chloride / Q000494:pharmacology
chemical_list: D000596:Amino Acids; D000806:Angiotensin-Converting Enzyme Inhibitors; D010446:Peptide Fragments; C068142:glyceraldehyde 3-phosphate dehydrogenase (304-313); D012965:Sodium Chloride; D011189:Potassium Chloride; D005987:Glyceraldehyde-3-Phosphate Dehydrogenases; D000645:Ammonium Sulfate