nasE

assimilatory nitrite reductase (subunit)

locus: BSU_03290

pI: 4.80

mw: 11.76 kDa

protein length: 106 aa

gene length: 321 bp

function: utilization of nitrite as nitrogen source

product: assimilatory nitrite reductase (subunit)

essential: no

ec: 1.7.1.4

synonyms: nasBD,nirD

Genomic Context

categories

• [category|SW 2|Metabolism] → [category|SW 2.1|Electron transport and ATP synthesis] → [category|SW 2.1.2|Respiration] → [category|SW 2.1.2.2|Anaerobic respiration]
• [category|SW 2|Metabolism] → [category|SW 2.3|Amino acid/ nitrogen metabolism] → [category|SW 2.3.3|Utilization of nitrogen sources other than amino acids] → [category|SW 2.3.3.1|Utilization of nitrate/ nitrite]

Gene

Coordinates: 355,412 355,732

The protein

Catalyzed reaction/ biological activity

• 2 H₂O + 3 NADP⁺ + NH₄⁺ --> 5 H⁺ + 3 NADPH + nitrite (according to UniProt)
• 2 H₂O + 3 NAD⁺ + NH₄⁺ --> 5 H⁺ + 3 NADH + nitrite (according to UniProt)

[SW|Domains]

• Rieske domain (aa 8-104) (according to UniProt)

[SW|Cofactors]

• NAD [Pubmed|11289299]
• FeS cluster [pubmed|29292548]

Structure

• [PDB|5BOK] (from Diaphorobacter sp., 30% identity)

[SW|Localization]

• cytoplasm (according to Swiss-Prot)

Expression and Regulation

Operons

• genes: [gene|3F87227DC3371746B3823730B6A7024D348C151E|nasB]-[gene|EC8BF9A3BA88FE2A78C6F78A888E0D1E25C47BC5|nasC]-[gene|FAAC0F819AEC8E055CCEE86D93C8DE5584DC4B23|nasD]-[gene|A8998F46F68155A5C8AE2A2FBB95CA5A1635BB2B|nasE]-[gene|159A6D0D45B5F0F055228357FD9A3BF8E5A999E5|nasF]
  description: [Pubmed|7836289]

  sigma factors

  • [protein|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|SigA]: sigma factor, [Pubmed|7836289], in [regulon|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|SigA regulon]

  regulatory mechanism

  • [protein|1E829D639BADDC6BDC9B5FB4C97A632A53FDDB24|ResD]: activation, [Pubmed|10972836], in [regulon|1E829D639BADDC6BDC9B5FB4C97A632A53FDDB24|ResD regulon]
  • [protein|857EF1AC54DEA0690C01B7F8CEFFD16312C58F20|TnrA]: activation, [PubMed|8799114,9765565], in [regulon|857EF1AC54DEA0690C01B7F8CEFFD16312C58F20|TnrA regulon]
  • [protein|EC6697D5D945B7E5083AFED9218748763C443278|NsrR]: repression, [Pubmed|16885456], in [regulon|EC6697D5D945B7E5083AFED9218748763C443278|NsrR regulon]
  • [protein|F899F1EE27E6D503BCC06BC52E3C7FD80B8EF725|Fur]: repression, [pubmed|12354229], in [regulon|F899F1EE27E6D503BCC06BC52E3C7FD80B8EF725|Fur regulon]

  regulation

  • ''[protein|search|nasD]'': expressed under anaerobic conditions ([protein|search|ResD]) [Pubmed|10972836]

• genes: [gene|FAAC0F819AEC8E055CCEE86D93C8DE5584DC4B23|nasD]-[gene|A8998F46F68155A5C8AE2A2FBB95CA5A1635BB2B|nasE]-[gene|159A6D0D45B5F0F055228357FD9A3BF8E5A999E5|nasF]
  description: [Pubmed|9765565]

  regulation

  • ''[protein|search|nasD]'': expressed under anaerobic conditions ([protein|search|ResD]) [Pubmed|10972836]

Biological materials

Mutant

• BKE03290 ([gene|A8998F46F68155A5C8AE2A2FBB95CA5A1635BB2B|nasE]::erm trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKE03290 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CATGTCCATTCCTCCTCAAT, downstream forward: _UP4_TGATCAAAAGACCGGATCAC
• BKK03290 ([gene|A8998F46F68155A5C8AE2A2FBB95CA5A1635BB2B|nasE]::kan trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKK03290 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CATGTCCATTCCTCCTCAAT, downstream forward: _UP4_TGATCAAAAGACCGGATCAC

References

Reviews

• 22103536,11289299

Original publications

• 12823818,7868621,8799114,9765565,10972836,16885456,21091510,24214949,25755103