Difference between revisions of "PurQ"

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* '''Additional information:''' subject to Clp-dependent proteolysis upon glucose starvation [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=+17981983 PubMed]
 
* '''Additional information:''' subject to Clp-dependent proteolysis upon glucose starvation [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=+17981983 PubMed]
 +
** number of protein molecules per cell (minimal medium with glucose and ammonium): 1941 {{PubMed|24696501}}
 +
** number of protein molecules per cell (complex medium with amino acids, without glucose): 4255 {{PubMed|24696501}}
  
 
=Biological materials =
 
=Biological materials =

Revision as of 09:36, 17 April 2014

  • Description: phosphoribosylformylglycinamidine synthase

Gene name purQ
Synonyms
Essential no
Product phosphoribosylformylglycinamidine synthase
Function purine biosynthesis
Gene expression levels in SubtiExpress: purQ
Interactions involving this protein in SubtInteract: PurQ
Metabolic function and regulation of this protein in SubtiPathways:
purQ
MW, pI 24 kDa, 4.627
Gene length, protein length 681 bp, 227 aa
Immediate neighbours purS, purL
Sequences Protein DNA DNA_with_flanks
Genetic context
PurQ context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
PurQ expression.png




























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: BSU06470

Phenotypes of a mutant

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: ATP + N(2)-formyl-N(1)-(5-phospho-D-ribosyl)glycinamide + L-glutamine + H2O = ADP + phosphate + 2-(formamido)-N(1)-(5-phospho-D-ribosyl)acetamidine + L-glutamate (according to Swiss-Prot)
  • Protein family:
  • Paralogous protein(s):

Extended information on the protein

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

Database entries

  • Structure:
  • 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
    • expression activated by glucose (4.4 fold) PubMed
  • Additional information: subject to Clp-dependent proteolysis upon glucose starvation PubMed
    • number of protein molecules per cell (minimal medium with glucose and ammonium): 1941 PubMed
    • number of protein molecules per cell (complex medium with amino acids, without glucose): 4255 PubMed

Biological materials

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

Labs working on this gene/protein

Your additional remarks

References

Aaron A Hoskins, Ruchi Anand, Steven E Ealick, JoAnne Stubbe
The formylglycinamide ribonucleotide amidotransferase complex from Bacillus subtilis: metabolite-mediated complex formation.
Biochemistry: 2004, 43(32);10314-27
[PubMed:15301530] [WorldCat.org] [DOI] (P p)

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)

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] [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)