UxaB

• Description: tagaturonate reductase
  
  

Gene name	uxaB
Synonyms	yjmI
Essential	no
Product	tagaturonate reductase
Function	hexuronate utilization
MW, pI	55 kDa, 5.056
Gene length, protein length	1440 bp, 480 aa
Immediate neighbours	exuR, uxaA
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

The gene

Basic information

• Locus tag: BSU12380

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: D-altronate + NAD⁺ = D-tagaturonate + NADH (according to Swiss-Prot)

• Protein family: UxaB subfamily (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure:

• Swiss prot entry: O34354

• KEGG entry: [3]

• E.C. number: 1.1.1.58

Expression and regulation

• Operon:
  • uxaC-yjmB-yjmC-yjmD-uxuA-yjmF-exuT-exuR-uxaB-uxaA PubMed
  • yjmC-yjmD-uxuA-yjmF-exuT-exuR-uxaB-uxaA PubMed

• Sigma factor:
  • uxaC: SigA PubMed
  • yjmC: SigE PubMed

• Regulation:
  • repressed by glucose (CcpA) PubMed1 PubMed2
  • induced by galacturonate (ExuR) PubMed

• Regulatory mechanism:
  • CcpA: transcription repression PubMed1 PubMed2
  • ExuR: reanscription repression in the absence of inducer PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Y Miwa, A Nakata, A Ogiwara, M Yamamoto, Y Fujita
Evaluation and characterization of catabolite-responsive elements (cre) of Bacillus subtilis.
Nucleic Acids Res: 2000, 28(5);1206-10
[PubMed:10666464] [WorldCat.org] [DOI] (I p)

K R Mekjian, E M Bryan, B W Beall, C P Moran
Regulation of hexuronate utilization in Bacillus subtilis.
J Bacteriol: 1999, 181(2);426-33
[PubMed:9882655] [WorldCat.org] [DOI] (P p)

Carlo Rivolta, Blazenka Soldo, Vladimir Lazarevic, Bernard Joris, Catherine Mauël, Dimitri Karamat
A 35.7 kb DNA fragment from the Bacillus subtilis chromosome containing a putative 12.3 kb operon involved in hexuronate catabolism and a perfectly symmetrical hypothetical catabolite-responsive element.
Microbiology (Reading): 1998, 144 ( Pt 4);877-884
[PubMed:9579062] [WorldCat.org] [DOI] (P p)