NasA

• Description: nitrate transporter
  
  

Gene name	nasA
Synonyms
Essential	no
Product	nitrate transporter
Function	nitrate uptake
Gene expression levels in SubtiExpress: nasA
Metabolic function and regulation of this protein in SubtiPathways: Alternative nitrogen sources
MW, pI	45 kDa, 10.494
Gene length, protein length	1263 bp, 421 aa
Immediate neighbours	nasB, yciA
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

transporters/ other, utilization of nitrogen sources other than amino acids, membrane proteins

This gene is a member of the following regulons

TnrA regulon

The gene

Basic information

• Locus tag: BSU03330

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: View classification (according to Swiss-Prot)

• Paralogous protein(s): NarK

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization: cell membrane (according to Swiss-Prot)

Database entries

• Structure:

• UniProt: P42432

• KEGG entry: [2]

• E.C. number:

Expression and regulation

• Operon:

• Expression browser: nasA PubMed

• Sigma factor:

• Regulation:
  • expressed in the absence of good nitrogen sources (glutamine or ammonium) (TnrA) PubMed

• Regulatory mechanism:
  • TnrA: transcription activation PubMed

• Additional information:

Biological materials

• Mutant:
  • 1A972 ( nasA::phleo), PubMed, available at BGSC

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Reviews

Víctor M Luque-Almagro, Andrew J Gates, Conrado Moreno-Vivián, Stuart J Ferguson, David J Richardson, M Dolores Roldán
Bacterial nitrate assimilation: gene distribution and regulation.
Biochem Soc Trans: 2011, 39(6);1838-43
[PubMed:22103536] [WorldCat.org] [DOI] (I p)