Difference between revisions of "PurM"

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* '''Operon:''' ''[[purE]]-[[purK]]-[[purB]]-[[purC]]-[[purS]]-[[purQ]]-[[purL]]-[[purF]]-[[purM]]-[[purN]]-[[purH]]-[[purD]]'' [http://www.ncbi.nlm.nih.gov/sites/entrez/3036807 PubMed]
 
* '''Operon:''' ''[[purE]]-[[purK]]-[[purB]]-[[purC]]-[[purS]]-[[purQ]]-[[purL]]-[[purF]]-[[purM]]-[[purN]]-[[purH]]-[[purD]]'' [http://www.ncbi.nlm.nih.gov/sites/entrez/3036807 PubMed]
  
* '''[[Sigma factor]]:''' [[SigA]] [http://www.ncbi.nlm.nih.gov/sites/entrez/3036807 PubMed]
+
* '''Expression browser:''' [http://genome.jouy.inra.fr/cgi-bin/seb/viewdetail.py?id=purM_706973_708013_1 purM] {{PubMed|22383849}}
 +
 
 +
* '''Sigma factor:''' [[SigA]] [http://www.ncbi.nlm.nih.gov/sites/entrez/3036807 PubMed]
  
 
* '''Regulation:'''  
 
* '''Regulation:'''  

Revision as of 15:32, 12 April 2012

  • Description: phosphoribosylaminoimidazole synthetase

Gene name purM
Synonyms
Essential no
Product phosphoribosylaminoimidazole synthetase
Function purine biosynthesis
Metabolic function and regulation of this protein in SubtiPathways:
Purine synthesis, Nucleotides (regulation)
MW, pI 36 kDa, 4.586
Gene length, protein length 1038 bp, 346 aa
Immediate neighbours purF, purN
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
PurM 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

G-box, PurR regulon

The gene

Basic information

  • Locus tag: BSU06500

Phenotypes of a mutant

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: ATP + 2-(formamido)-N(1)-(5-phospho-D-ribosyl)acetamidine = ADP + phosphate + 5-amino-1-(5-phospho-D-ribosyl)imidazole (according to Swiss-Prot)
  • Protein family: AIR synthase 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: 2BTU (from Bacillus anthracis, 64% identity, 78% similarity)
  • KEGG entry: [3]

Additional information

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:

Biological materials

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

Labs working on this gene/protein

Your additional remarks

References

Lars Engholm Johansen, Per Nygaard, Catharina Lassen, Yvonne Agersø, Hans H Saxild
Definition of a second Bacillus subtilis pur regulon comprising the pur and xpt-pbuX operons plus pbuG, nupG (yxjA), and pbuE (ydhL).
J Bacteriol: 2003, 185(17);5200-9
[PubMed:12923093] [WorldCat.org] [DOI] (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)

D J Ebbole, H Zalkin
Cloning and characterization of a 12-gene cluster from Bacillus subtilis encoding nine enzymes for de novo purine nucleotide synthesis.
J Biol Chem: 1987, 262(17);8274-87
[PubMed:3036807] [WorldCat.org] (P p)