PbuG

• Description: hypoxanthin/ guanine permease
  
  

Gene name	pbuG
Synonyms	yebB
Essential	no
Product	hypoxanthin/ guanine permease
Function	hypoxanthine and guanine uptake
Gene expression levels in SubtiExpress: pbuG
Metabolic function and regulation of this protein in SubtiPathways: Purine salvage, Nucleotides (regulation)
MW, pI	46 kDa, 8.808
Gene length, protein length	1320 bp, 440 aa
Immediate neighbours	guaA, yebC
Sequences	Protein DNA Advanced_DNA
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

transporters/ other, biosynthesis/ acquisition of nucleotides, membrane proteins

This gene is a member of the following regulons

G-box, PurR regulon

The gene

Basic information

• Locus tag: BSU06370

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family:

• Paralogous protein(s): PbuO

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization: membrane PubMed

Database entries

• Structure: 2EEW (the pbuG riboswitch, U47c mutant, bound to hypoxanthine)

• UniProt: O34987

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: pbuG PubMed

• Expression browser: pbuG PubMed

• Sigma factor:

• Regulation:
  • repressed by hypoxanthine and guanine, PurR-independent, (G-box)PubMed
  • repressed in the presence of adenine or adenosine(PurR) PubMed

• Regulatory mechanism:
  • PurR: transcription repression (molecular inducer: PRPP) PubMed
  • G-box: transcription termination/ antitermination (riboswitch) PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Hannes Hahne, Susanne Wolff, Michael Hecker, Dörte Becher
From complementarity to comprehensiveness--targeting the membrane proteome of growing Bacillus subtilis by divergent approaches.
Proteomics: 2008, 8(19);4123-36
[PubMed:18763711] [WorldCat.org] [DOI] (I 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)

Maumita Mandal, Benjamin Boese, Jeffrey E Barrick, Wade C Winkler, Ronald R Breaker
Riboswitches control fundamental biochemical pathways in Bacillus subtilis and other bacteria.
Cell: 2003, 113(5);577-86
[PubMed:12787499] [WorldCat.org] [DOI] (P p)

H H Saxild, K Brunstedt, K I Nielsen, H Jarmer, P Nygaard
Definition of the Bacillus subtilis PurR operator using genetic and bioinformatic tools and expansion of the PurR regulon with glyA, guaC, pbuG, xpt-pbuX, yqhZ-folD, and pbuO.
J Bacteriol: 2001, 183(21);6175-83
[PubMed:11591660] [WorldCat.org] [DOI] (P p)