Difference between revisions of "PurB"

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* '''Regulation:'''  
 
* '''Regulation:'''  
 +
** repressed in the presence of purine nucleotides ([[PurR]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/7638212 PubMed]
 
** repressed in the presence of adenine or adenosine([[PurR]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/2536750 PubMed]
 
** repressed in the presence of adenine or adenosine([[PurR]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/2536750 PubMed]
 
** repressed in the presence of guanine([[G-box]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/3036807 PubMed]
 
** repressed in the presence of guanine([[G-box]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/3036807 PubMed]
  
 
* '''Regulatory mechanism:'''  
 
* '''Regulatory mechanism:'''  
 +
** [PurR]]: transcription repression [http://www.ncbi.nlm.nih.gov/sites/entrez/7638212 PubMed]
 
** [[PurR]]: transcription repression (molecular inducer: PRPP) [http://www.ncbi.nlm.nih.gov/sites/entrez/2536750 PubMed]
 
** [[PurR]]: transcription repression (molecular inducer: PRPP) [http://www.ncbi.nlm.nih.gov/sites/entrez/2536750 PubMed]
 
** [[G-box]]: transcription termination/ antitermination ([[riboswitch]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/3036807 PubMed1] [http://www.ncbi.nlm.nih.gov/sites/entrez/12787499 PubMed2]
 
** [[G-box]]: transcription termination/ antitermination ([[riboswitch]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/3036807 PubMed1] [http://www.ncbi.nlm.nih.gov/sites/entrez/12787499 PubMed2]

Revision as of 17:07, 11 June 2009

  • Description: adenylsuccinate lyase

Gene name purB
Synonyms
Essential no
Product adenylsuccinate lyase
Function purine biosynthesis
Metabolic function and regulation of this protein in SubtiPathways:
Stress
MW, pI 49 kDa, 5.822
Gene length, protein length 1293 bp, 431 aa
Immediate neighbours purK, purC
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
PurB context.gif
This image was kindly provided by SubtiList



The gene

Basic information

  • Locus tag: BSU06440

Phenotypes of a mutant

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: N(6)-(1,2-dicarboxyethyl)AMP = fumarate + AMP (according to Swiss-Prot)
  • Protein family: Adenylosuccinate lyase subfamily (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s):
  • Effectors of protein activity:
  • Interactions:
  • Localization:

Database entries

  • KEGG entry: [3]

Additional information

  • subject to Clp-dependent proteolysis upon glucose starvation PubMed

Expression and regulation

  • Regulation:
    • repressed in the presence of purine nucleotides (PurR) PubMed
    • repressed in the presence of adenine or adenosine(PurR) PubMed
    • repressed in the presence of guanine(G-box) PubMed
  • Additional information: subject to Clp-dependent proteolysis upon glucose starvation PubMed

Biological materials

  • Mutant:
  • Expression vector:
  • lacZ fusion:
  • GFP fusion:
  • two-hybrid system:
  • Antibody:

Labs working on this gene/protein

Your additional remarks

References

  1. Gerth et al. (2008) Clp-dependent proteolysis down-regulates central metabolic pathways in glucose-starved Bacillus subtilis. J Bacteriol 190:321-331 PubMed
  2. Author1, Author2 & Author3 (year) Title Journal volume: page-page. PubMed