Difference between revisions of "CcpA"

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=== Database entries ===
 
=== Database entries ===
  
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* '''Structure:''' [http://www.rcsb.org/pdb/cgi/explore.cgi?pdbId=2JCG 2JCG] (Apoprotein from ''Bacillus megaterium''), CcpA-Crh-DNA-complex [http://www.ncbi.nlm.nih.gov/Structure/mmdb/mmdbsrv.cgi?Dopt=s&uid=52326 NCBI], complex with P-Ser-[[PtsH |HPr]] and sulphate ions [http://www.ncbi.nlm.nih.gov/Structure/mmdb/mmdbsrv.cgi?Dopt=s&uid=39857 NCBI]
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* '''Structure:'''  
 +
** [http://www.rcsb.org/pdb/cgi/explore.cgi?pdbId=2JCG 2JCG] (Apoprotein from ''Bacillus megaterium'')
 +
** CcpA-[[Crh]]-DNA-complex [http://www.ncbi.nlm.nih.gov/Structure/mmdb/mmdbsrv.cgi?Dopt=s&uid=52326 NCBI]
 +
** complex with P-Ser-[[PtsH |HPr]] and sulphate ions [http://www.ncbi.nlm.nih.gov/Structure/mmdb/mmdbsrv.cgi?Dopt=s&uid=39857 NCBI]
 +
** [http://www.pdb.org/pdb/search/structidSearch.do?structureId=3OQM 3OQM] (complex of ''B. subtilis'' CcpA with P-Ser-[[PtsH |HPr]] and the ''[[ackA]]'' operator site)
 +
** [http://www.pdb.org/pdb/search/structidSearch.do?structureId=3OQN 3OQN] (complex of ''B. subtilis'' CcpA with P-Ser-[[PtsH |HPr]] and the ''[[gntR]]'' operator site)
 +
** [http://www.pdb.org/pdb/search/structidSearch.do?structureId=3OQO 3OQO] (complex of ''B. subtilis'' CcpA with P-Ser-[[PtsH |HPr]] and a optimal synthetic operator site)
  
 
* '''UniProt:''' [http://www.uniprot.org/uniprot/P25144 P25144]
 
* '''UniProt:''' [http://www.uniprot.org/uniprot/P25144 P25144]

Revision as of 15:59, 17 October 2010

  • Description: Carbon catabolite control protein A, involved in glucose regulation of many genes; represses catabolic genes and activates genes involved in excretion of excess carbon

Gene name ccpA
Synonyms graR, alsA, amyR
Essential no
Product transcriptional regulator (LacI family)
Function mediates carbon catabolite repression (CCR)
Metabolic function and regulation of this protein in SubtiPathways:
Nucleoside catabolism, Nucleotides (regulation), Ile, Leu, Val,
His, Coenzyme A, Central C-metabolism
MW, pI 36,8 kDa, 5.06
Gene length, protein length 1002 bp, 334 amino acids
Immediate neighbours motP, aroA
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
CcpA context.gif
This image was kindly provided by SubtiList





The gene

Basic information

  • Locus tag: BSU29740

Phenotypes of a mutant

Loss of carbon catabolite repression. Loss of PTS-dependent sugar transport due to excessive phosphorylation of HPr by HprK. The mutant is unable to grow on a minimal medium with glucose and ammonium as the only sources of carbon and nitrogen, respectively.

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: transcriptional regulator of carbon catabolite repression (CCR)
  • Paralogous protein(s):

Genes controlled by CcpA

Extended information on the protein

  • Kinetic information:
  • Domains:
    • HTH lacI-type Domain (1 – 58)
    • DNA binding Domain (6 – 25)
  • Modification:
  • Cofactor(s): HPr-Ser46-P, Crh-Ser-46-P
  • Effectors of protein activity:glucose-6-phosphate, fructose-1,6-bisphosphate Pubmed
  • Localization:

Database entries

  • Structure:
    • 2JCG (Apoprotein from Bacillus megaterium)
    • CcpA-Crh-DNA-complex NCBI
    • complex with P-Ser-HPr and sulphate ions NCBI
    • 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)
  • KEGG entry: [3]

Additional information

Expression and regulation

  • Sigma factor:
  • Regulation: constitutively expressed PubMed
  • Additional information: there are about 3.000 molecules of CcpA per cell PubMed, this corresponds to a concentration of 3 myM (according to PubMed)

Biological materials

  • Mutant: QB5407 (spc), GP302 (erm), GP300 (an in frame deletion of ccpA), available in Stülke lab
  • Expression vector: pGP643 (N-terminal Strep-tag, purification from B. subtilis, for SPINE, in pGP380), available in Stülke lab
  • lacZ fusion:
  • GFP fusion:

Labs working on this gene/protein

Your additional remarks

References

Reviews

Sabine Brantl, Andreas Licht
Characterisation of Bacillus subtilis transcriptional regulators involved in metabolic processes.
Curr Protein Pept Sci: 2010, 11(4);274-91
[PubMed:20408793] [WorldCat.org] [DOI] (I p)

Yasutaro Fujita
Carbon catabolite control of the metabolic network in Bacillus subtilis.
Biosci Biotechnol Biochem: 2009, 73(2);245-59
[PubMed:19202299] [WorldCat.org] [DOI] (I p)

Boris Görke, Jörg Stülke
Carbon catabolite repression in bacteria: many ways to make the most out of nutrients.
Nat Rev Microbiol: 2008, 6(8);613-24
[PubMed:18628769] [WorldCat.org] [DOI] (I p)

Josef Deutscher
The mechanisms of carbon catabolite repression in bacteria.
Curr Opin Microbiol: 2008, 11(2);87-93
[PubMed:18359269] [WorldCat.org] [DOI] (P p)

Jessica B Warner, Juke S Lolkema
CcpA-dependent carbon catabolite repression in bacteria.
Microbiol Mol Biol Rev: 2003, 67(4);475-90
[PubMed:14665673] [WorldCat.org] [DOI] (P p)

T M Henkin
The role of CcpA transcriptional regulator in carbon metabolism in Bacillus subtilis.
FEMS Microbiol Lett: 1996, 135(1);9-15
[PubMed:8598282] [WorldCat.org] [DOI] (P p)


General and physiological studies

Global analyses (proteome, transcriptome)

Repression of target genes by CcpA


Positive regulation of gene expression by CcpA

Control of CcpA activity

Lwin Mar Aung-Hilbrich, Gerald Seidel, Andrea Wagner, Wolfgang Hillen
Quantification of the influence of HPrSer46P on CcpA-cre interaction.
J Mol Biol: 2002, 319(1);77-85
[PubMed:12051938] [WorldCat.org] [DOI] (P p)

A Galinier, J Deutscher, I Martin-Verstraete
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: 1999, 286(2);307-14
[PubMed:9973552] [WorldCat.org] [DOI] (P p)

J H Kim, M I Voskuil, G H Chambliss
NADP, corepressor for the Bacillus catabolite control protein CcpA.
Proc Natl Acad Sci U S A: 1998, 95(16);9590-5
[PubMed:9689125] [WorldCat.org] [DOI] (P p)

B E Jones, V Dossonnet, E Küster, W Hillen, J Deutscher, R E Klevit
Binding of the catabolite repressor protein CcpA to its DNA target is regulated by phosphorylation of its corepressor HPr.
J Biol Chem: 1997, 272(42);26530-5
[PubMed:9334231] [WorldCat.org] [DOI] (P p)

J Deutscher, E Küster, U Bergstedt, V Charrier, W Hillen
Protein kinase-dependent HPr/CcpA interaction links glycolytic activity to carbon catabolite repression in gram-positive bacteria.
Mol Microbiol: 1995, 15(6);1049-53
[PubMed:7623661] [WorldCat.org] [DOI] (P p)

CcpA-DNA interaction

Gerald Seidel, Marco Diel, Norbert Fuchsbauer, Wolfgang Hillen
Quantitative interdependence of coeffectors, CcpA and cre in carbon catabolite regulation of Bacillus subtilis.
FEBS J: 2005, 272(10);2566-77
[PubMed:15885105] [WorldCat.org] [DOI] (P p)

Y Miwa, A Nakata, A Ogiwara, M Yamamoto, Y Fujita
Evaluation and characterization of catabolite-responsive elements (cre) of Bacillus subtilis.
Nucleic Acids Res: 2000, 28(5);1206-10
[PubMed:10666464] [WorldCat.org] [DOI] (I p)

J H Kim, G H Chambliss
Contacts between Bacillus subtilis catabolite regulatory protein CcpA and amyO target site.
Nucleic Acids Res: 1997, 25(17);3490-6
[PubMed:9254709] [WorldCat.org] [DOI] (P p)

Y Fujita, Y Miwa, A Galinier, J Deutscher
Specific recognition of the Bacillus subtilis gnt cis-acting catabolite-responsive element by a protein complex formed between CcpA and seryl-phosphorylated HPr.
Mol Microbiol: 1995, 17(5);953-60
[PubMed:8596444] [WorldCat.org] [DOI] (P p)

J H Kim, Z T Guvener, J Y Cho, K C Chung, G H Chambliss
Specificity of DNA binding activity of the Bacillus subtilis catabolite control protein CcpA.
J Bacteriol: 1995, 177(17);5129-34
[PubMed:7665492] [WorldCat.org] [DOI] (P p)

Functional analysis of CcpA

Structural analyses

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