Difference between revisions of "PurA"

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=== Database entries ===
 
=== Database entries ===
 +
* '''BsubCyc:''' [http://bsubcyc.org/BSUB/NEW-IMAGE?type=NIL&object=BSU40420&redirect=T BSU40420]
  
 
* '''DBTBS entry:''' [http://dbtbs.hgc.jp/COG/prom/purA.html]
 
* '''DBTBS entry:''' [http://dbtbs.hgc.jp/COG/prom/purA.html]
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=== Database entries ===
 
=== Database entries ===
 +
* '''BsubCyc:''' [http://bsubcyc.org/BSUB/NEW-IMAGE?type=NIL&object=BSU40420&redirect=T BSU40420]
  
 
* '''Structure:''' [http://www.rcsb.org/pdb/cgi/explore.cgi?pdbId=1KJX 1KJX] (from ''Escherichia coli k12'', 46% identity, 64% similarity) {{PubMed|11741996}}
 
* '''Structure:''' [http://www.rcsb.org/pdb/cgi/explore.cgi?pdbId=1KJX 1KJX] (from ''Escherichia coli k12'', 46% identity, 64% similarity) {{PubMed|11741996}}

Revision as of 15:16, 2 April 2014

  • Description: adenylosuccinate synthetase

Gene name purA
Synonyms
Essential no
Product adenylosuccinate synthetase
Function purine biosynthesis
Gene expression levels in SubtiExpress: purA
Metabolic function and regulation of this protein in SubtiPathways:
purA
MW, pI 47 kDa, 5.459
Gene length, protein length 1290 bp, 430 aa
Immediate neighbours trnY-Lys, yycE
Sequences Protein DNA DNA_with_flanks
Genetic context
PurA context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
PurA expression.png















Categories containing this gene/protein

biosynthesis/ acquisition of nucleotides, phosphoproteins, most abundant proteins

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:
  • Modification:
    • phosphorylated on Arg-97 PubMed
  • 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:

Biological materials

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

Labs working on this gene/protein

Your additional remarks

References