NupG

• Description: purine nucleoside transporter
  
  

Gene name	nupG
Synonyms	yxjA
Essential	no
Product	purine nucleoside transporter
Function	purine uptake
Gene expression levels in SubtiExpress: nupG
MW, pI	43 kDa, 7.757
Gene length, protein length	1191 bp, 397 aa
Immediate neighbours	yxjB, yxiT
Get the DNA and protein sequences (Barbe et al., 2009)
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

The gene

Basic information

• Locus tag: BSU39020

Phenotypes of a mutant

• a nupN nupG double mutant is unable to utilize externally provided guanosine PubMed

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: SLC28A transporter family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:
  • cell membrane PubMed

Database entries

• Structure:

• UniProt: P42312

• KEGG entry: [2]

• E.C. number:

Expression and regulation

• Operon: nupG

• Expression browser: nupG PubMed

• Sigma factor:

• Regulation:
  • expression activated by glucose (4.3 fold) PubMed
  • repressed by hypoxanthine and guanine, PurR-independent, G-boxPubMed

• Regulatory mechanism: G-box: transcriptional termination/ antitermination riboswitch PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Boris R Belitsky, Abraham L Sonenshein
CodY-mediated regulation of guanosine uptake in Bacillus subtilis.
J Bacteriol: 2011, 193(22);6276-87
[PubMed:21926227] [WorldCat.org] [DOI] (I p)

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)

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)