PtsH

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  • Description: HPr, General component of the sugar phosphotransferase system (PTS).

Gene name ptsH
Synonyms
Essential no
Product histidine-containing phosphocarrier protein HPr of the PTS
Function PTS-dependent sugar trnasport and carbon catabolite repression
MW, pI 9,1 kDa, 4.58
Gene length, protein length 264 bp, 88 amino acids
Immediate neighbours ptsG, ptsI
Gene sequence (+200bp) Protein sequence
Genetic context
PtsH context.gif




The gene

Basic information

  • Coordinates: 1458693 - 1458956

Phenotypes of a mutant

Database entries

  • DBTBS entry: [1]
  • SubtiList entry:[2]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: Protein HPr N(pi)-phospho-L-histidine + protein EIIA = protein HPr + protein EIIA N(tau)-phospho-L-histidine
  • Protein family: HPr family
  • Paralogous protein(s): Crh

Extended information on the protein

  • Kinetic information:
  • Domains: HPr Domain (2–88)
  • Modification: phosphorylations: transient phosphorylation by Enzyme I of the PTS on His-15, regulatory phosphorylation on Ser-46 by HprK PubMed, weak phosphorylation on Ser-12 PubMed, an extensive study on in vivo HPr phosphorylation can be found in Singh et al. (2008) PubMed
  • Cofactor(s):
  • Effectors of protein activity:
  • Localization: Cytoplasm PubMed

Database entries

  • Structure: NCBI, complex of L. Casei HprK with B. Subtilis HPr NCBI, complex of L. Casei HprK with B. Subtilis HPr-Ser-P NCBI
  • Swiss prot entry: [3]
  • KEGG entry: [4]
  • E.C. number: [5]

Additional information

Expression and regulation

  • Regulation: induction by glucose (ptsG), constitutive (ptsH)
  • Regulatory mechanism: ptsG: transcriptional antitermination via the GlcT-dependent RNA-switch
  • Additional information:

Biological materials

  • Mutant: MZ303 (cat), GP507 ptsH1 (S46A), GP506 (ptsH-H15A), available in Stülke lab
  • Expression vector: pGP438 (with N-terminal Strep-tag, in pGP172), pAG2 (His-tag) pGP371(ptsH-S46A, with His-tag, in pWH844), available in Stülke
  • lacZ fusion:
  • GFP fusion:
  • two-hybrid system: B. pertussis adenylate cyclase-based bacterial two hybrid system (BACTH), available in Stülke lab
  • Antibody: available in Stülke lab

Labs working on this gene/protein

Josef Deutscher, Paris-Grignon, France

Jörg Stülke, University of Göttingen, Germany Homepage

Wolfgang Hillen, Erlangen University, Germany Homepage

Richard Brennan, Houston, Texas, USA Homepage

Boris Görke, University of Göttingen, Germany Homepage

Anne Galinier, University of Marseille, France

Your additional remarks

References

  1. Macek B, Mijakovic I, Olsen JV (2007) The serine/threonine/tyrosine phosphoproteome of the model bacterium Bacillus subtilis. Mol Cell Proteomics 6(4): 697-707. PubMed
  2. Müller W, Horstmann N, Hillen W (2006) The transcription regulator RbsR represents a novel interaction partner of the phosphoprotein HPr-Ser46-P in Bacillus subtilis FEBS J. 273(6): 1251-61. PubMed
  3. Pompeo et al. (2007) Interaction of GapA with HPr and its homologue, Crh: Novel levels of regulation of a key step of glycolysis in Bacillus subtilis? J Bacteriol 189, 1154-1157.PubMed
  4. Fieulaine, S., Morera, S., Poncet, S., Mijakovic, I., Galinier, A., Janin, J., Deutscher, J., and Nessler, S. (2002) X-ray structure of a bifunctional protein kinase in complex with its protein substrate HPr. Proc Natl Acad Sci U S A 99: 13437-13441. PubMed
  5. Arnaud M, Vary P, Zagorec M, Klier A, Débarbouillé M, Postma P, Rapoport G (1992) Regulation of the sacPA operon of Bacillus subtilis: identification of phosphotransferase system components involved in SacT activity. J Bacteriol 174:3161-3170. PubMed
  6. Deutscher, J., Kessler, U., Alpert, C. A., and Hengstenberg, W. (1984) Bacterial phosphoenolpyruvate-dependent phosphotransferase system: P-ser-HPr and its possible regulatory function. Biochemistry 23: 4455-4460. DOI:10.1021/bi00314a033
  7. Deutscher, J., Küster, E., Bergstedt, U., Charrier, V., and Hillen, W. (1995) Protein kinase-dependent HPr/CcpA interaction links glycolytic activity to carbon catabolite repression in Gram-positive bacteria. Mol. Microbiol. 15: 1049-1053. PubMed
  8. Eisermann, R., Deutscher, J., Gonzy-Tréboul, G., and Hengstenberg, W. (1988) Site-directed mutagenesis with the ptsH gene of Bacillus subtilis. J Biol Chem 263: 17050-17054. PubMed
  9. Frisby, D., and Zuber, P. 1994. Mutations in pts cause catabolite-resistant sporulation and altered regulation of spo0H in Bacillus subtilis. J. Bacteriol. 176: 2587-2595. PubMed
  10. Galinier A, Deutscher J, Martin-Verstraete I: (1999) Phosphorylation of either Crh or HPr mediates binding of CcpA to the Bacillus subtilis xyn cre and catabolite repression of the xyn operon. J Mol Biol , 286:307-314. PubMed
  11. Görke, B., Fraysse, L. & Galinier, A. (2004) Drastic differences in Crh and HPr synthesis levels reflect their different impacts on catabolite repression in Bacillus subtilis. J. Bacteriol. 186, 2992-2995 . PubMed
  12. Lindner, C., Galinier, A., Hecker, M. & Deutscher, J. (1999) Regulation of the activity of the Bacillus subtilis antiterminator LicT by multiple PEP-dependent, enzyme I- and HPr-catalysed phosphorylation. Mol. Microbiol. 31, 995-1006 . PubMed
  13. Lindner, C., Hecker, M., Le Coq, D. & Deutscher, J. (2002) Bacillus subtilis mutant LicT antiterminators exhibiting enzyme I- and HPr-independent antitermination affect catabolite repression of the bglPH operon. J. Bacteriol. 184, 4819-4828 . PubMed
  14. Martin-Verstraete, I., Charrier, V., Stülke, J., Galinier, A., Erni, B., Rapoport, G., & Deutscher, J. (1998) Antagonistic effects of dual PTS catalyzed phosphorylation on the Bacillus subtilis transcriptional activator LevR. Mol. Microbiol. 28: 293-303. PubMed
  15. Martin-Verstraete, I., Deutscher, J., and Galinier, A. (1999) Phosphorylation of HPr and Crh by HprK, early steps in the catabolite repression signalling pathway for the Bacillus subtilis levanase operon. J Bacteriol 181: 2966-2969. PubMed
  16. Reizer, J., Sutrina, S. L., Saier, Jr., M. H., Stewart, G. C., Peterkofsky, A., and Reddy, P. (1989) Mechanistic and physiological consequences of HPr(Ser) phosphorylation on the activities of the phosphoenolpyruvate:sugar phosphotransferase system in Gram-positive bacteria: studies with site-specific mutants of HPr. EMBO J 8: 2111-2120. PubMed
  17. Schmalisch, M., Bachem, S. & Stülke, J. (2003) Control of the Bacillus subtilis antiterminator protein GlcT by phosphorylation: Elucidation of the phosphorylation chain leading to inactivation of GlcT. J. Biol. Chem. 278: 51108-51115. PubMed
  18. Schumacher, M. A. et al. (2004) Structural basis for allosteric control of the transcription regulator CcpA by the phosphoprotein HPr-Ser46-P. Cell 118, 731-741 . PubMed
  19. Singh, K. D., Halbedel, S., Görke, B. & Stülke, J. (2007) Control of the phosphorylation state of the HPr protein of the phosphotransferase system in Bacillus subtilis: implication of the protein phosphatase PrpC. J. Mol. Microbiol. Biotechnol. 13: 165-171. PubMed
  20. Singh, K. D., Schmalisch, M. H., Stülke, J. & Görke, B. (2008) Carbon catabolite repression in Bacillus subtilis: A quantitative analysis of repression exerted by different carbon sources. J. Bacteriol. 190: 7275-7284. PubMed
  21. Stülke, J., Martin-Verstraete, I., Charrier, V., Klier, A., Deutscher, J. & Rapoport, G. (1995) The HPr protein of the phosphotransferase system links induction and catabolite repression of the Bacillus subtilis levanase operon. J. Bacteriol. 177: 6928-6936. PubMed
  22. Tortosa, P., Aymerich, S., Lindner, C., Saier, M.H., Jr., Reizer, J. and Le Coq, D. (1997) Multiple phosphorylation of SacY, a Bacillus subtilis antiterminator negatively controlled by the phosphotransferase system. J. Biol. Chem. 272, 17230-17237. PubMed
  23. Charrier V, Buckley E, Parsonage D, Galinier A, Darbon E, Jaquinod M, Forest E, Deutscher J, Claiborne A (1997) Cloning and sequencing of two enterococcal glpK genes and regulation of the encoded glycerol kinases by phosphoenolpyruvate-dependent, phosphotransferase system-catalyzed phosphorylation of a single histidyl residue. J Biol Chem 272:14166-14174. PubMed
  24. Darbon E, Servant P, Poncet S, Deutscher J (2002) Antitermination by GlpP, catabolite repression via CcpA and inducer exclusion triggered by P~GlpK dephosphorylation control Bacillus subtilis glpFK expression. Mol Microbiol 43:1039-1052. PubMed