PupG

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  • Description: purine nucleoside phosphorylase

Gene name punA
Synonyms pnp, yqkO
Essential no
Product purine nucleoside phosphorylase
Function purine salvage and interconversion
Metabolic function and regulation of this protein in SubtiPathways:
Purine salvage, Nucleoside catabolism, Nucleotides (regulation)
MW, pI 28 kDa, 4.86
Gene length, protein length 813 bp, 271 aa
Immediate neighbours dacF, drm
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
PunA context.gif
This image was kindly provided by SubtiList







The gene

Basic information

  • Locus tag: BSU23490

Phenotypes of a mutant

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: Purine nucleoside + phosphate = purine + alpha-D-ribose 1-phosphate (according to Swiss-Prot) RNA(n+1) + phosphate = RNA(n) + a nucleoside diphosphate (according to Swiss-Prot)
  • Protein family: PNP/MTAP phosphorylase family (according to Swiss-Prot) polyribonucleotide nucleotidyltransferase family (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification: phosphorylation on Ser-28 PubMed
  • Cofactor(s):
  • Effectors of protein activity:
  • Interactions:
  • Localization: secreted (according to Swiss-Prot)

Database entries

  • Structure:
  • KEGG entry: [3]

Additional information

Expression and regulation

  • Operon:
  • Regulation:
  • 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

References