Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 1.7.99.1 extracted from

  • Walker, G.C.; Nicholas, D.J.D.
    Hydroxylamine reductase from Pseudomonas aeruginosa (1961), Biochim. Biophys. Acta, 49, 361-368.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
Cu2+ inhibition of dialyzed enzyme at 0.0005 mM Pseudomonas aeruginosa
hydrazine competitive inhibition Pseudomonas aeruginosa
Zn2+ inhibition of dialyzed enzyme at 0.0005 mM Pseudomonas aeruginosa

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0000004
-
hydroxylamine
-
Pseudomonas aeruginosa
0.00001
-
FADH2
-
Pseudomonas aeruginosa
0.000012
-
reduced pyocyanine
-
Pseudomonas aeruginosa
0.000044
-
reduced methylene blue
-
Pseudomonas aeruginosa

Metals/Ions

Metals/Ions Comment Organism Structure
Co2+ can substitute for Mn2+, only 10% as effective Pseudomonas aeruginosa
Mn2+ required for maximal activity Pseudomonas aeruginosa

Organism

Organism UniProt Comment Textmining
Pseudomonas aeruginosa
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Pseudomonas aeruginosa

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.87
-
-
Pseudomonas aeruginosa

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
hydroxylamine + reduced acceptor with pyocyanine or reduced methylene blue as electron donor Pseudomonas aeruginosa ammonia + oxidized acceptor
-
?
nitrate + FADH2
-
Pseudomonas aeruginosa nitrite + FAD + H2O
-
r
nitrate + reduced methylene blue
-
Pseudomonas aeruginosa nitrite + H2O + oxidized methylene blue
-
r
nitrate + reduced pyocyanine
-
Pseudomonas aeruginosa nitrite + H2O + oxidized pyocyanine
-
r

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
-
Pseudomonas aeruginosa

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.8
-
-
Pseudomonas aeruginosa

Cofactor

Cofactor Comment Organism Structure
FAD flavoprotein, contains 0.9 nmol FAD per mg protein Pseudomonas aeruginosa