KEGG   ENZYME: 7.3.2.4Help
Entry
EC 7.3.2.4                  Enzyme                                 

Name
ABC-type nitrate transporter;
nitrate-transporting ATPase (ambiguous)
Class
Translocases;
Catalysing the translocation of inorganic anions and their chelates;
Linked to the hydrolysis of a nucleoside triphosphate
BRITE hierarchy
Sysname
ATP phosphohydrolase (ABC-type, nitrate-importing)
Reaction(IUBMB)
ATP + H2O + nitrate-[nitrate-binding protein][side 1] = ADP + phosphate + nitrate[side 2] + [nitrate-binding protein][side 1]
Substrate
ATP [CPD:C00002];
H2O [CPD:C00001];
nitrate-[nitrate-binding protein][side 1]
Product
ADP [CPD:C00008];
phosphate [CPD:C00009];
nitrate[side 2];
[nitrate-binding protein][side 1]
Comment
An ATP-binding cassette (ABC) type transporter, characterized by the presence of two similar ATP-binding domains/proteins and two integral membrane domains/proteins. The enzyme, found in bacteria, interacts with an extracytoplasmic substrate binding protein and mediates the import of nitrate, nitrite, and cyanate.
History
EC 7.3.2.4 created 2000 as EC 3.6.3.26, transferred 2018 to EC 7.3.2.4
Reference
1  [PMID:7767600]
  Authors
Omata T.
  Title
Structure, function and regulation of the nitrate transport system of the cyanobacterium Synechococcus sp. PCC7942.
  Journal
Plant Cell Physiol 36:207-13 (1995)
Reference
2  [PMID:7569321]
  Authors
Kuan G, Dassa E, Saurin W, Hofnung M, Saier MH Jr.
  Title
Phylogenetic analyses of the ATP-binding constituents of bacterial extracytoplasmic receptor-dependent ABC-type nutrient uptake permeases.
  Journal
Res Microbiol 146:271-8 (1995)
DOI:10.1016/0923-2508(96)81050-3
Reference
3  [PMID:9889977]
  Authors
Saier MH Jr.
  Title
Molecular phylogeny as a basis for the classification of transport proteins from bacteria, archaea and eukarya.
  Journal
Adv Microb Physiol 40:81-136 (1998)
Reference
4
  Authors
Griffiths, J.K. and Sansom, C.E.
  Title
The Transporter Factsbook, Academic Press, San Diego, 1998.
Other DBs
ExplorEnz - The Enzyme Database: 7.3.2.4
IUBMB Enzyme Nomenclature: 7.3.2.4
ExPASy - ENZYME nomenclature database: 7.3.2.4
BRENDA, the Enzyme Database: 7.3.2.4

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