title: ClpB proteins copurify with the anaerobic Escherichia coli reductase.
abstract: Two proteins, called alpha and beta 3, copurify with the anaerobic ribonucleotide reductase from Escherichia coli (Eliasson et al. (1990) Proc. Natl. Acad. Sci. U.S.A. 87, 3314-3318). Both are now identified as products of the clpB gene that is presumed to code for a subunit of an ATP dependent protease. The tight associations suggest the possibility that the ClpB proteins are involved in the regulation of the anaerobic reductase.
authors.affiliation: Department of Biochemistry I, Karolinska Institute, Stockholm, Sweden.
authors.forename: E
authors.initials: E
authors.lastname: Pontis
authors.forename: X Y
authors.initials: XY
authors.lastname: Sun
authors.forename: H
authors.initials: H
authors.lastname: Jörnvall
authors.forename: M
authors.initials: M
authors.lastname: Krook
authors.forename: P
authors.initials: P
authors.lastname: Reichard
mesh_terms: D049069:ATP-Dependent Proteases; D000595:Amino Acid Sequence; D000693:Anaerobiosis; D000911:Antibodies, Monoclonal; D004926:Escherichia coli / Q000201:enzymology* / Q000254:growth & development; D006360:Heat-Shock Proteins; D046911:Macromolecular Substances; D008969:Molecular Sequence Data; D012264:Ribonucleotide Reductases / Q000302:isolation & purification*; D012689:Sequence Homology, Nucleic Acid; D012697:Serine Endopeptidases / Q000302:isolation & purification*
chemical_list: D000911:Antibodies, Monoclonal; D006360:Heat-Shock Proteins; D046911:Macromolecular Substances; D012264:Ribonucleotide Reductases; D049069:ATP-Dependent Proteases; D012697:Serine Endopeptidases