_EC 1.7.99.4 Nitrate reductase. 24 PDB entries  
EC 1.-.-.- Oxidoreductases. [8,663 PDB entries]
EC 1.7.-.- Acting on other nitrogenous compounds as donors. [339 PDB entries]
EC 1.7.99.- With other acceptors. [56 PDB entries]
EC 1.7.99.4 Nitrate reductase. [24 PDB entries]    
1ogy

Reaction: Nitrite + acceptor = nitrate + reduced acceptor.
 


Nitrite
+ acceptor
=
nitrate
+ reduced acceptor
Molecule diagrams generated from .mol files obtained from the KEGG ftp site.

Other name(s): Respiratory nitrate reductase.
Comments: The Pseudomonas enzyme is a cytochrome, but the enzyme from Micrococcus halodenitrificans is an iron protein containing molybdenum. Reduced benzyl viologen and other dyes bring about the reduction of nitrate.
Links:   [IntEnz]   [ExPASy]   [KEGG]  

There are 24 PDB entries in enzyme class E.C.1.7.99.4

  PDB code Protein
1ogy
Crystal structure of the heterodimeric nitrate reductase from rhodobacter sphaeroides
Source: Rhodobacter sphaeroides. Organism_taxid: 1063. Expressed in: rhodobacter sphaeroides. Expression_system_taxid: 1063. Expression_system_taxid: 1063
Chains: A, C, E, G, I, K, M, O (790 residues) CATH domains: Unassigned 3.40.50.740 3.40.228.10 2.40.40.20
1q16
Crystal structure of nitrate reductase a, narghi, from escherichia coli
Source: Escherichia coli. Organism_taxid: 562. Gene: narg. Expressed in: escherichia coli. Expression_system_taxid: 562. Gene: narh. Gene: nari.
Chains: A, B, C (1244 residues) CATH domains: 4.10.1200.10 Unassigned 2.20.25.90 Unassigned 3.40.50.740 Unassigned 3.40.228.10 Unassigned Unassigned Unassigned Unassigned Unassigned 2.40.40.20
1r27
Crystal structure of nargh complex
Source: Escherichia coli. Organism_taxid: 562. Strain: gl101. Strain: gl101
Chains: A, B, C, D (1218 residues) CATH domains: Unassigned Unassigned Unassigned 2.40.40.20
1siw
Crystal structure of the apomolybdo-narghi
Source: Escherichia coli. Organism_taxid: 562. Gene: operon narghji: narg, narc, bisd, b1224. Expressed in: escherichia coli. Expression_system_taxid: 562. Gene: operon narghji: narh, b1225. Gene: operon narghji: nari, chli, b1227.
Chains: A, B, C (1240 residues) CATH domains: 4.10.1200.10 Unassigned 2.20.25.90 Unassigned 3.40.50.740 Unassigned 3.40.228.10 Unassigned Unassigned Unassigned Unassigned Unassigned 2.40.40.20
1y4z
The crystal structure of nitrate reductase a, narghi, in complex with the q-site inhibitor pentachlorophenol
Source: Escherichia coli. Organism_taxid: 562. Gene: narg. Expressed in: escherichia coli. Expression_system_taxid: 562. Gene: narh. Gene: nari.
Chains: A, B, C (1244 residues) CATH domains: Unassigned Unassigned Unassigned 2.40.40.20
1y5i
The crystal structure of the narghi mutant nari-k86a
Source: Escherichia coli. Organism_taxid: 562. Gene: narg. Expressed in: escherichia coli. Expression_system_taxid: 562. Gene: narh. Gene: nari.
Chains: A, B, C (1244 residues) CATH domains: Unassigned Unassigned Unassigned 2.40.40.20
1y5l
The crystal structure of the narghi mutant nari-h66y
Source: Escherichia coli. Organism_taxid: 562. Gene: narg. Expressed in: escherichia coli. Expression_system_taxid: 562. Gene: narh. Gene: nari.
Chains: A, B, C (1244 residues) CATH domains: Unassigned Unassigned
1y5n
The crystal structure of the narghi mutant nari-k86a in complex with pentachlorophenol
Source: Escherichia coli. Organism_taxid: 562. Gene: narg. Expressed in: escherichia coli. Expression_system_taxid: 562. Gene: narh. Gene: nari.
Chains: A, B, C (1244 residues) CATH domains: Unassigned Unassigned
2jim
A new catalytic mechanism of periplasmic nitrate reductase from desulfovibrio desulfuricans atcc 27774 from crystallographic and epr data and based on detailed analysis of the sixth ligand
Source: Desulfovibrio desulfuricans. Organism_taxid: 876. Atcc: 27774
Chain: A (720 residues) CATH domains: 2.20.25.90 3.40.50.740 3.40.228.10 2.40.40.20
2jio
A new catalytic mechanism of periplasmic nitrate reductase from desulfovibrio desulfuricans atcc 27774 from crystallographic and epr data and based on detailed analysis of the sixth ligand
Source: Desulfovibrio desulfuricans. Organism_taxid: 876. Atcc: 27774
Chain: A (720 residues) CATH domains: 2.20.25.90 3.40.50.740 3.40.228.10 2.40.40.20
2jip
A new catalytic mechanism of periplasmic nitrate reductase from desulfovibrio desulfuricans atcc 27774 from crystallographic and epr data and based on detailed analysis of the sixth ligand
Source: Desulfovibrio desulfuricans. Organism_taxid: 876. Atcc: 27774
Chain: A (720 residues) CATH domains: 2.20.25.90 3.40.50.740 3.40.228.10 2.40.40.20
2jiq
A new catalytic mechanism of periplasmic nitrate reductase from desulfovibrio desulfuricans atcc 27774 from crystallographic and epr data and based on detailed analysis of the sixth ligand
Source: Desulfovibrio desulfuricans. Organism_taxid: 876. Atcc: 27774
Chain: A (720 residues) CATH domains: 2.20.25.90 3.40.50.740 3.40.228.10 2.40.40.20
Bound ligands:   Het Group NO2 corresponds to enzyme reactant Nitrite
  Het Group NO3 corresponds to enzyme product nitrate
2jir
A new catalytic mechanism of periplasmic nitrate reductase from desulfovibrio desulfuricans atcc 27774 from crystallographic and epr data and based on detailed analysis of the sixth ligand
Source: Desulfovibrio desulfuricans. Organism_taxid: 876. Atcc: 27774
Chain: A (720 residues) CATH domains: 2.20.25.90 3.40.50.740 3.40.228.10 2.40.40.20
Bound ligand:   Het Group NO2 corresponds to enzyme reactant Nitrite
2nap
Dissimilatory nitrate reductase (nap) from desulfovibrio desulfuricans
Source: Desulfovibrio desulfuricans. Organism_taxid: 876. Collection: atcc 27774. Cellular_location: periplasm
Chain: A (720 residues) CATH domains: 2.20.25.90 3.40.50.740 3.40.228.10 2.40.40.20
2nya
Crystal structure of the periplasmic nitrate reductase (nap) from escherichia coli
Source: Escherichia coli k12. Organism_taxid: 83333. Strain: k-12. Gene: napa. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, F (791 residues) CATH domains: Unassigned 3.40.50.740 3.40.228.10 2.40.40.20
2pq4
Nmr solution structure of napd in complex with napa1-35 signal peptide
Source: Escherichia coli. Strain: k12. Gene: napd, b2207, jw2195. Expressed in: escherichia coli. Gene: napa, b2206, jw2194.
Chain: B (35 residues)
2v3v
A new catalytic mechanism of periplasmic nitrate reductase from desulfovibrio desulfuricans atcc 27774 from crystallographic and epr data and based on detailed analysis of the sixth ligand
Source: Desulfovibrio desulfuricans. Organism_taxid: 876. Atcc: 27774
Chain: A (721 residues) CATH domains: 2.20.25.90 3.40.50.740 3.40.228.10 2.40.40.20
2v45
A new catalytic mechanism of periplasmic nitrate reductase from desulfovibrio desulfuricans atcc 27774 from crystallographic and epr data and based on detailed analysis of the sixth ligand
Source: Desulfovibrio desulfuricans. Organism_taxid: 876. Atcc: 27774
Chain: A (723 residues) CATH domains: 2.20.25.90 3.40.50.740 3.40.228.10 2.40.40.20
3egw
The crystal structure of the narghi mutant narh - c16a
Source: Escherichia coli. Organism_taxid: 83333. Gene: narg, bisd, narc, b1224, jw1215. Expressed in: escherichia coli. Expression_system_taxid: 562. Gene: narh, b1225, jw1216. Gene: nari, chli, b1227, jw1218.
Chains: A, B, C (1244 residues) CATH domains: Unassigned Unassigned
3ir5
Crystal structure of narghi mutant narg-h49c
Source: Escherichia coli k-12. Organism_taxid: 83333. Gene: narg, bisd, narc, b1224, jw1215. Expressed in: escherichia coli. Expression_system_taxid: 562. Gene: narh, b1225, jw1216. Gene: nari, chli, b1227, jw1218. Expression_system_taxid: 562
Chains: A, B, C (1244 residues) CATH domains: Unassigned Unassigned Unassigned 2.40.40.20
3ir6
Crystal structure of narghi mutant narg-h49s
Source: Escherichia coli k-12. Organism_taxid: 83333. Gene: narg, bisd, narc, b1224, jw1215. Expressed in: escherichia coli. Expression_system_taxid: 562. Gene: narh, b1225, jw1216. Gene: nari, chli, b1227, jw1218. Expression_system_taxid: 562
Chains: A, B, C (1233 residues) CATH domains: Unassigned Unassigned Unassigned 2.40.40.20
3ir7
Crystal structure of narghi mutant narg-r94s
Source: Escherichia coli k-12. Organism_taxid: 83333. Strain: k12. Gene: narg, bisd, narc, b1224, jw1215. Expressed in: escherichia coli. Expression_system_taxid: 562. Gene: narh, b1225, jw1216. Gene: nari, chli, b1227, jw1218. Expression_system_taxid: 562
Chains: A, B, C (1242 residues) CATH domains: 4.10.1200.10 Unassigned 2.20.25.90 Unassigned 3.40.50.740 Unassigned 3.40.228.10 Unassigned Unassigned Unassigned Unassigned Unassigned 2.40.40.20
3ml1
Crystal structure of the periplasmic nitrate reductase from cupriavidus necator
Source: Ralstonia eutropha. Cupriavidus necator. Organism_taxid: 381666. Strain: h16. Gene: napab. Expressed in: cupriavidus necator. Expression_system_taxid: 106590. Gene: napb.
Chain: A (799 residues) CATH domains: Unassigned 3.40.50.740 3.40.228.10 2.40.40.20
3o5a
Crystal structure of partially reduced periplasmic nitrate r from cupriavidus necator using ionic liquids
Source: Ralstonia eutropha. Cupriavidus necator. Organism_taxid: 381666. Strain: h16. Gene: phg211. Expressed in: cupriavidus necator. Expression_system_taxid: 106590. Gene: phg212.
Chain: A (792 residues) CATH domains: Unassigned 3.40.50.740 3.40.228.10 2.40.40.20