NadA

• Description: quinolinate synthetase
  
  

Gene name	nadA
Synonyms
Essential	no
Product	quinolinate synthetase
Function	NAD biosynthesis
Gene expression levels in SubtiExpress: nadA
Metabolic function and regulation of this protein in SubtiPathways: NadA
MW, pI	41 kDa, 5.717
Gene length, protein length	1104 bp, 368 aa
Immediate neighbours	safA, nadC
Sequences	Protein DNA DNA_with_flanks
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

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

• BsubCyc: BSU27850

• 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

• BsubCyc: BSU27850

• Structure:

• UniProt: Q9KWZ1

• KEGG entry: [3]

• E.C. number: 2.5.1.72

Expression and regulation

• Operon: nadB-nadC-nadA PubMed

• Expression browser: nadA PubMed

• Sigma factor: SigA PubMed

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

• Regulatory mechanism:
  • NadR: transcription repression PubMed

• Additional information:
  • number of protein molecules per cell (minimal medium with glucose and ammonium): 1064 PubMed
  • number of protein molecules per cell (complex medium with amino acids, without glucose): 6486 PubMed

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