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Literature summary for 1.7.1.1 extracted from

  • Barber, M.J.; Notton, B.A.; Kay, C.J.; Solomonson, L.P.
    Chloride inhibition of spinach nitrate reductase (1989), Plant Physiol., 90, 70-94.
    View publication on PubMedView publication on EuropePMC

Inhibitors

Inhibitors Comment Organism Structure
Cl- alters the observed Mo(V) lineshape, mixed-type inhibitor, decreases both NADH:nitrate reductase and reduced methyl viologen:nitrate reductase activities Spinacia oleracea

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.013
-
nitrate at ionic strength of 50 mM Spinacia oleracea
0.018
-
nitrate at ionic strength of 200 mM Spinacia oleracea
0.093
-
nitrate in 5 mM phosphate buffer Spinacia oleracea

Organism

Organism UniProt Comment Textmining
Spinacia oleracea
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Spinacia oleracea
-

Storage Stability

Storage Stability Organism
-20°C, 50 mM MOPS, containing 0.01 mM FAD, 0.1 mM EDTA, pH 7.0, 50% glycerol, stable for several months Spinacia oleracea

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
nitrate + NADH
-
Spinacia oleracea nitrite + NAD+ + H2O
-
?
reduced methyl viologen + nitrate
-
Spinacia oleracea methyl viologen + nitrite
-
?

Cofactor

Cofactor Comment Organism Structure
NADH
-
Spinacia oleracea

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
15
-
Cl- binding to the native enzyme Spinacia oleracea
176
-
Cl- binding to the enzyme-NO3- complex Spinacia oleracea