Difference between revisions of "PtsH"

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{{SubtiWiki category|[[phosphotransferase systems]]}},
 
{{SubtiWiki category|[[phosphotransferase systems]]}},
 
{{SubtiWiki category|[[transcription factors and their control]]}},
 
{{SubtiWiki category|[[transcription factors and their control]]}},
−
{{SubtiWiki category|[[phosphoproteins]]}}
+
{{SubtiWiki category|[[phosphoproteins]]}},
 +
[[most abundant proteins]]
  
 
= This gene is a member of the following [[regulons]] =
 
= This gene is a member of the following [[regulons]] =
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=== Additional information===
 
=== Additional information===
−
 
−
 
  
 
=The protein=
 
=The protein=
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* '''Kinetic information:'''
 
* '''Kinetic information:'''
  
−
* '''Domains:''' HPr Domain (2–88)
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* '''[[Domains]]:''' HPr Domain (2–88)
  
 
* '''Modification:'''  
 
* '''Modification:'''  
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** ''in vitro'' phosphorylated by [[PrkC]] on Ser-12 {{PubMed|20389117}}
 
** ''in vitro'' phosphorylated by [[PrkC]] on Ser-12 {{PubMed|20389117}}
  
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* '''Cofactor(s):'''
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* '''[[Cofactors]]:'''
  
 
* '''Effectors of protein activity:'''
 
* '''Effectors of protein activity:'''
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* '''Additional information:'''
 
* '''Additional information:'''
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** belongs to the 100 [[most abundant proteins]] {{PubMed|15378759}}
  
 
=Biological materials =
 
=Biological materials =
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=References=
 
=References=
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<pubmed>16519689,,12850135 17218307 16519689 17142398 12359875 1577686 9162046 11929549 9336834 7803390, 7623661, 2846556, 8169206, 9973552, 15126459, 10048041, 12169607, 9622354, 10217795, 17693724, 18757537 , 9202047 , 7592487, 15369672 , 14527945, 2507315 8580838 19651770 8418852 1303754 1549615 20081037 20389117 20444094 22001508 22722928 23551403</pubmed>
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<pubmed>16519689,,12850135 17218307 16519689 17142398 12359875 1577686 9162046 11929549 9336834 7803390, 7623661, 2846556, 8169206, 9973552, 15126459, 10048041, 12169607, 9622354, 10217795, 17693724, 18757537 , 9202047 , 7592487, 15369672 , 14527945, 2507315 8580838 19651770 8418852 1303754 1549615 20081037 20389117 20444094 22001508 22722928 23551403 15378759</pubmed>
  
 
[[Category:Protein-coding genes]]
 
[[Category:Protein-coding genes]]

Revision as of 16:16, 5 March 2014

  • 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 transport
and carbon catabolite repression
Gene expression levels in SubtiExpress: ptsH
Interactions involving this protein in SubtInteract: PtsH
Metabolic function and regulation of this protein in SubtiPathways:
PtsH
MW, pI 9,1 kDa, 4.58
Gene length, protein length 264 bp, 88 amino acids
Immediate neighbours ptsG, ptsI
Sequences Protein DNA DNA_with_flanks
Genetic context
PtsH context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
PtsH expression.png
















Categories containing this gene/protein

phosphotransferase systems, transcription factors and their control, phosphoproteins, most abundant proteins

This gene is a member of the following regulons

GlcT regulon, stringent response

The gene

Basic information

  • Locus tag: BSU13900

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 (according to Swiss-Prot) Protein HPr N(pi)-phospho-L-histidine + protein EIIA = protein HPr + protein EIIA N(tau)-phospho-L-histidine
  • Protein family: HPr domain (according to Swiss-Prot) HPr family
  • Paralogous protein(s): Crh

Extended information on the protein

  • Kinetic information:
  • Modification:
    • transient phosphorylation by Enzyme I of the PTS on His-15
    • regulatory phosphorylation on Ser-46 by HprK PubMed
    • an extensive study on in vivo HPr phosphorylation can be found in Singh et al. (2008) PubMed
    • weak phosphorylation on Ser-12 PubMed
    • in vitro phosphorylated by PrkC on Ser-12 PubMed
  • Effectors of protein activity:

Database entries

  • Structure:
    • 1KKM (complex of L. casei HprK with B. subtilis HPr-Ser-P)
    • 1KKL (complex of Lactobacillus casei HprK with B. subtilis HPr)
    • 2HID (NMR)
    • 3OQM (complex of B. subtilis CcpA with P-Ser-HPr and the ackA operator site)
    • 3OQN (complex of B. subtilis CcpA with P-Ser-HPr and the gntR operator site)
    • 3OQO (complex of B. subtilis CcpA with P-Ser-HPr and a optimal synthetic operator site)
  • UniProt: P08877
  • KEGG entry: [3]

Additional information

Expression and regulation

  • Regulation:
    • expression activated by glucose (2 fold) (GlcT) PubMed
    • the ptsH promoter is constitutive PubMed
    • subject to negative stringent control upon amino acid limitation (due to control of ptsG transcription initiation) PubMed

Biological materials

  • Mutant: available in Jörg Stülke's lab:
    • MZ303 (cat)
    • GP507 ptsH1 (S46A)
    • GP506 (ptsH-H15A)
    • GP777 (replacement of glcT and the ptsG-ptsH-ptsI operon by a spc cassette), PubMed
  • lacZ fusion:
  • GFP fusion:
  • CFP fusion: B. subtilis GP1267 ptsH-cfp ermC- without terminator, available in Jörg Stülke's lab
  • two-hybrid system: B. pertussis adenylate cyclase-based bacterial two hybrid system (BACTH), available in Jörg Stülke's 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

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