NadA

• Description: quinolinate synthetase
  
  

Gene name	nadA
Synonyms
Essential	no
Product	quinolinate synthetase
Function	NAD biosynthesis
MW, pI	41 kDa, 5.717
Gene length, protein length	1104 bp, 368 aa
Immediate neighbours	safA, nadC
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

Categories containing this gene/protein

biosynthesis of cofactors

This gene is a member of the following regulons

NadR regulon

The gene

Basic information

• Locus tag: BSU27850

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: Glycerone phosphate + iminosuccinate = pyridine-2,3-dicarboxylate + 2 H₂O + phosphate (according to Swiss-Prot)

• Protein family: Type 3 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:

• UniProt: Q9KWZ1

• KEGG entry: [3]

• E.C. number: 2.5.1.72

Expression and regulation

• Operon: nadB-nadC-nadA PubMed

• Sigma factor: SigA PubMed

• Regulation:
  • repressed in the presence of nicotinic acid (NadR) PubMed

• Regulatory mechanism:
  • NadR: transcription repression PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

Labs working on this gene/protein

Alessandra Albertini, University of Pavia, Italy homepage

References

Ilaria Marinoni, Simona Nonnis, Carmine Monteferrante, Peter Heathcote, Elisabeth Härtig, Lars H Böttger, Alfred X Trautwein, Armando Negri, Alessandra M Albertini, Gabriella Tedeschi
Characterization of L-aspartate oxidase and quinolinate synthase from Bacillus subtilis.
FEBS J: 2008, 275(20);5090-107
[PubMed:18959769] [WorldCat.org] [DOI] (I p)

Paola Rossolillo, Ilaria Marinoni, Elisa Galli, Anna Colosimo, Alessandra M Albertini
YrxA is the transcriptional regulator that represses de novo NAD biosynthesis in Bacillus subtilis.
J Bacteriol: 2005, 187(20);7155-60
[PubMed:16199587] [WorldCat.org] [DOI] (P p)

D Sun, P Setlow
Cloning, nucleotide sequence, and regulation of the Bacillus subtilis nadB gene and a nifS-like gene, both of which are essential for NAD biosynthesis.
J Bacteriol: 1993, 175(5);1423-32
[PubMed:8444804] [WorldCat.org] [DOI] (P p)