Difference between revisions of "PurK"

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|style="background:#ABCDEF;" align="center"|'''Function''' || purine biosynthesis
 
|style="background:#ABCDEF;" align="center"|'''Function''' || purine biosynthesis
 
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|colspan="2" style="background:#FAF8CC;" align="center"| '''Gene expression levels in [http://cellpublisher.gobics.de/subtiexpress/ ''Subti''Express]''': [http://cellpublisher.gobics.de/subtiexpress/bsu/BSU06430 purK]
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|colspan="2" style="background:#FAF8CC;" align="center"| '''Gene expression levels in [http://subtiwiki.uni-goettingen.de/apps/expression/ ''Subti''Express]''': [http://subtiwiki.uni-goettingen.de/apps/expression/expression.php?search=BSU06430 purK]
 
|-
 
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|colspan="2" style="background:#FAF8CC;" align="center"| '''Metabolic function and regulation of this protein in [[SubtiPathways|''Subti''Pathways]]: <br/>[http://subtiwiki.uni-goettingen.de/pathways/purine_biosynthesis.html Purine synthesis], [http://subtiwiki.uni-goettingen.de/pathways/gene_regulation_nucleotides.html Nucleotides (regulation)]'''
 
|colspan="2" style="background:#FAF8CC;" align="center"| '''Metabolic function and regulation of this protein in [[SubtiPathways|''Subti''Pathways]]: <br/>[http://subtiwiki.uni-goettingen.de/pathways/purine_biosynthesis.html Purine synthesis], [http://subtiwiki.uni-goettingen.de/pathways/gene_regulation_nucleotides.html Nucleotides (regulation)]'''
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|style="background:#ABCDEF;" align="center"|'''Immediate neighbours''' || ''[[purE]]'', ''[[purB]]''
 
|style="background:#ABCDEF;" align="center"|'''Immediate neighbours''' || ''[[purE]]'', ''[[purB]]''
 
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|colspan="2" style="background:#FAF8CC;" align="center"|'''Get the DNA and protein [http://srs.ebi.ac.uk/srsbin/cgi-bin/wgetz?-e+&#91;EMBLCDS:CAB12463&#93;+-newId sequences] <br/> (Barbe ''et al.'', 2009)'''
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|style="background:#FAF8CC;" align="center"|'''Sequences'''||[http://bsubcyc.org/BSUB/sequence-aa?type=GENE&object=BSU06430 Protein] [http://bsubcyc.org/BSUB/sequence?type=GENE&object=BSU06430 DNA] [http://bsubcyc.org/BSUB/seq-selector?chromosome=CHROM-1&object=BSU06430 Advanced_DNA]
 
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|colspan="2" | '''Genetic context''' <br/> [[Image:purK_context.gif]]
 
|colspan="2" | '''Genetic context''' <br/> [[Image:purK_context.gif]]

Revision as of 12:17, 13 May 2013

  • Description: phosphoribosylaminoimidazole carboxylase (ATP-dependent)

Gene name purK
Synonyms
Essential no
Product phosphoribosylaminoimidazole carboxylase
(ATP-dependent)
Function purine biosynthesis
Gene expression levels in SubtiExpress: purK
Metabolic function and regulation of this protein in SubtiPathways:
Purine synthesis, Nucleotides (regulation)
MW, pI 42 kDa, 5.124
Gene length, protein length 1137 bp, 379 aa
Immediate neighbours purE, purB
Sequences Protein DNA Advanced_DNA
Genetic context
PurK context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
PurK 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: BSU06430

Phenotypes of a mutant

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate = 5-amino-1-(5-phospho-D-ribosyl)imidazole + CO2 (according to Swiss-Prot)
  • Protein family: ATP-grasp domain (according to Swiss-Prot)
  • Paralogous protein(s): PurT

Extended information on the protein

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

Database entries

  • Structure: 2Z04 (from Aquifex aeolicus, 37% identity, 57% 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)