title: A novel phosphoprotein dependent on the bacterial phosphoenolpyruvate-sugar phosphotransferase system.
abstract: A protein has been fond by isoelectricfocusing and autoradiography in Escherichia coli and Salmonella typhimurium which was phosphorylated by enzyme I and an histidine-containing phosphocarrier protein (HPr) of the phosphoenolpyruvate-sugar phosphotransferase system (PTS). This protein was not factor III glc nor was it specifically induced by fructose. Its presence in soluble crude extracts was dependent upon growth conditions; however, the two bacteria had different patterns and amounts in respect to this novel protein. The protein was present in S. typhimurium SB2950 which has an extensive deletion through the pts operon, thus indicating that it must be coded for elsewhere on the genome.
mesh_terms: D001426:Bacterial Proteins / Q000032:analysis / Q000378:metabolism*; D002352:Carrier Proteins / Q000378:metabolism; D004926:Escherichia coli / Q000378:metabolism*; D005632:Fructose / Q000378:metabolism; D005947:Glucose / Q000378:metabolism; D010731:Phosphoenolpyruvate Sugar Phosphotransferase System / Q000378:metabolism*; D010750:Phosphoproteins / Q000032:analysis / Q000378:metabolism*; D010766:Phosphorylation; D017852:Phosphotransferases (Nitrogenous Group Acceptor); D012486:Salmonella typhimurium / Q000378:metabolism*
chemical_list: D001426:Bacterial Proteins; D002352:Carrier Proteins; D010750:Phosphoproteins; D005632:Fructose; D010731:Phosphoenolpyruvate Sugar Phosphotransferase System; C030182:phosphocarrier protein HPr; D017852:Phosphotransferases (Nitrogenous Group Acceptor); C022360:phosphoenolpyruvate-protein phosphotransferase; D005947:Glucose