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Literature summary for 1.7.7.1 extracted from

  • Romero, L.C.; Galvan, F.; Vega, J.M.
    Purification and properties of the siroheme-containing ferredoxin-nitrite reductase from Chlamydomonas reinhardtii (1987), Biochim. Biophys. Acta, 914, 55-63.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
CO
-
Chlamydomonas reinhardtii

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.024
-
oxidized ferredoxin
-
Chlamydomonas reinhardtii
0.91
-
methyl viologen
-
Chlamydomonas reinhardtii

Metals/Ions

Metals/Ions Comment Organism Structure
Iron 0.65 molecules of siroheme per enzyme molecule Chlamydomonas reinhardtii

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
25000
-
1 * 63000 + 1 * 25000, SDS-PAGE Chlamydomonas reinhardtii
63000
-
1 * 63000 + 1 * 25000, SDS-PAGE Chlamydomonas reinhardtii
86000
-
gel filtration Chlamydomonas reinhardtii

Organism

Organism UniProt Comment Textmining
Chlamydomonas reinhardtii
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Chlamydomonas reinhardtii

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
89
-
-
Chlamydomonas reinhardtii

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
NH3 + H2O + oxidized ferredoxin
-
Chlamydomonas reinhardtii nitrite + reduced ferredoxin + H+
-
r
nitrite + reduced ferredoxin other electron donor: methyl viologen Chlamydomonas reinhardtii ammonia + oxidized ferredoxin
-
?
nitrite + reduced ferredoxin other electron donor: benzyl viologen Chlamydomonas reinhardtii ammonia + oxidized ferredoxin
-
?
nitrite + reduced methyl viologen
-
Chlamydomonas reinhardtii NH3 + H2O + oxidized methyl viologen
-
?

Subunits

Subunits Comment Organism
dimer 1 * 63000 + 1 * 25000, SDS-PAGE Chlamydomonas reinhardtii

Cofactor

Cofactor Comment Organism Structure
siroheme 0.65 mol of siroheme per mol of enzyme Chlamydomonas reinhardtii