Difference between revisions of "PurA"

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(Extended information on the protein)
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* '''Operon:''' ''purA'' {{PubMed|1312531}}  
* '''Operon:''' ''purA'' {{PubMed|1312531}}  
* '''[[Sigma factor]]:''' [[SigA]] {{PubMed|1312531}}  
* '''Expression browser:''' [http://genome.jouy.inra.fr/cgi-bin/seb/viewdetail.py?id=purA_4155433_4156725_-1 purA] {{PubMed|22383849}}
* '''Sigma factor:''' [[SigA]] {{PubMed|1312531}}  
* '''Regulation:''' expression activated by glucose (4.9 fold) ([[CcpA]]) [http://www.ncbi.nlm.nih.gov/pubmed/12850135 PubMed]   
* '''Regulation:''' expression activated by glucose (4.9 fold) ([[CcpA]]) [http://www.ncbi.nlm.nih.gov/pubmed/12850135 PubMed]   

Revision as of 11:27, 17 April 2012

  • Description: adenylosuccinate synthetase

Gene name purA
Essential no
Product adenylosuccinate synthetase
Function purine biosynthesis
Metabolic function and regulation of this protein in SubtiPathways:
Purine salvage, Purine synthesis, Nucleotides (regulation)
MW, pI 47 kDa, 5.459
Gene length, protein length 1290 bp, 430 aa
Immediate neighbours trnY-Lys, yycE
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
PurA context.gif
This image was kindly provided by SubtiList

Categories containing this gene/protein

biosynthesis/ acquisition of nucleotides

This gene is a member of the following regulons

PurR regulon

The gene

Basic information

  • Locus tag: BSU40420

Phenotypes of a mutant

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: GTP + IMP + L-aspartate = GDP + phosphate + N(6)-(1,2-dicarboxyethyl)-AMP (according to Swiss-Prot)
  • Protein family: adenylosuccinate synthetase family (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

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

Database entries

  • Structure: 1KJX (from Escherichia coli k12, 46% identity, 64% similarity) PubMed
  • KEGG entry: [3]

Additional information

Expression and regulation

  • Regulation: expression activated by glucose (4.9 fold) (CcpA) PubMed
    • repressed in the presence of purine nucleotides (PurR) PubMed
  • Regulatory mechanism:
  • Additional information:

Biological materials

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

Labs working on this gene/protein

Your additional remarks


Haojian Li, Guoqiang Zhang, Aihua Deng, Ning Chen, Tingyi Wen
De novo engineering and metabolic flux analysis of inosine biosynthesis in Bacillus subtilis.
Biotechnol. Lett.: 2011, 33(8);1575-80
[PubMed:21424839] [WorldCat.org] [DOI] (I p)

Hans-Matti Blencke, Georg Homuth, Holger Ludwig, Ulrike Mäder, Michael Hecker, Jörg Stülke
Transcriptional profiling of gene expression in response to glucose in Bacillus subtilis: regulation of the central metabolic pathways.
Metab. Eng.: 2003, 5(2);133-49
[PubMed:12850135] [WorldCat.org] (P p)

M Weng, P L Nagy, H Zalkin
Identification of the Bacillus subtilis pur operon repressor.
Proc. Natl. Acad. Sci. U.S.A.: 1995, 92(16);7455-9
[PubMed:7638212] [WorldCat.org] [DOI] (P p)

P Mäntsälä, H Zalkin
Cloning and sequence of Bacillus subtilis purA and guaA, involved in the conversion of IMP to AMP and GMP.
J. Bacteriol.: 1992, 174(6);1883-90
[PubMed:1312531] [WorldCat.org] [DOI] (P p)

H H Saxild, P Nygaard
Regulation of levels of purine biosynthetic enzymes in Bacillus subtilis: effects of changing purine nucleotide pools.
J. Gen. Microbiol.: 1991, 137(10);2387-94
[PubMed:1722815] [WorldCat.org] [DOI] (P p)