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Literature summary extracted from

  • Tikhonova, T.V.; Slutsky, A.; Antipov, A.N.; Boyko, K.M.; Polyakov, K.M.; Sorokin, D.Y.; Zvyagilskaya, R.A.; Popov, V.O.
    Molecular and catalytic properties of a novel cytochrome c nitrite reductase from nitrate-reducing haloalkaliphilic sulfur-oxidizing bacterium Thioalkalivibrio nitratireducens (2006), Biochim. Biophys. Acta, 1764, 715-723.
    View publication on PubMed

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.7.2.2 azide
-
Thioalkalivibrio nitratireducens
1.7.2.2 cyanide strong inhibitor Thioalkalivibrio nitratireducens
1.7.2.2 nitrate
-
Thioalkalivibrio nitratireducens
1.7.2.2 phosphate weak inhibitor Thioalkalivibrio nitratireducens
1.7.2.2 sulfate weak inhibitor Thioalkalivibrio nitratireducens
1.7.2.2 sulfite
-
Thioalkalivibrio nitratireducens

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.7.2.2 16.4
-
hydroxylamine in 0.1 M K+-phosphate buffer, at pH 7.0 and 30°C Thioalkalivibrio nitratireducens
1.7.2.2 16.7
-
nitrite in 0.1 M K+-phosphate buffer, at pH 7.0 and 30°C Thioalkalivibrio nitratireducens
1.7.2.2 60
-
sulfite in 0.1 M K+-phosphate buffer, at pH 7.0 and 30°C Thioalkalivibrio nitratireducens

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
1.7.2.2 Ca2+ 1-3 mol per subunit Thioalkalivibrio nitratireducens
1.7.2.2 Fe 8-11 mol per subunit Thioalkalivibrio nitratireducens

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
1.7.2.2 64000
-
6 * 64000, calculated from sequence analysis and spectral properties Thioalkalivibrio nitratireducens

Organism

EC Number Organism UniProt Comment Textmining
1.7.2.2 Thioalkalivibrio nitratireducens
-
-
-
1.7.2.2 Thioalkalivibrio nitratireducens ALEN 2
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
1.7.2.2 non-denaturing preparative polyacrylamide gel electrophoresis Thioalkalivibrio nitratireducens

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.7.2.2 4080
-
-
Thioalkalivibrio nitratireducens

Storage Stability

EC Number Storage Stability Organism
1.7.2.2 30°C, potassium phosphate buffer at pH 7.0, 24 h, no loss of activity Thioalkalivibrio nitratireducens

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.7.2.2 hydroxylamine + ferrocytochrome c 10 mM hydroxylamine Thioalkalivibrio nitratireducens NH3 + ferricytochrome c + H2O
-
ir
1.7.2.2 hydroxylamine + ferrocytochrome c 10 mM hydroxylamine Thioalkalivibrio nitratireducens ALEN 2 NH3 + ferricytochrome c + H2O
-
ir
1.7.2.2 additional information no reaction with chloride, bromate and nitrate Thioalkalivibrio nitratireducens ?
-
?
1.7.2.2 additional information the enzyme possesses also peroxidase activity Thioalkalivibrio nitratireducens ?
-
?
1.7.2.2 additional information no reaction with chloride, bromate and nitrate Thioalkalivibrio nitratireducens ALEN 2 ?
-
?
1.7.2.2 additional information the enzyme possesses also peroxidase activity Thioalkalivibrio nitratireducens ALEN 2 ?
-
?
1.7.2.2 nitrite + ferrocytochrome c
-
Thioalkalivibrio nitratireducens NH3 + ferricytochrome c + H2O
-
?
1.7.2.2 nitrite + ferrocytochrome c
-
Thioalkalivibrio nitratireducens ALEN 2 NH3 + ferricytochrome c + H2O
-
?
1.7.2.2 sulfite + ?
-
Thioalkalivibrio nitratireducens sulfide + ?
-
?
1.7.2.2 sulfite + ?
-
Thioalkalivibrio nitratireducens ALEN 2 sulfide + ?
-
?

Subunits

EC Number Subunits Comment Organism
1.7.2.2 hexamer 6 * 64000, calculated from sequence analysis and spectral properties Thioalkalivibrio nitratireducens

Synonyms

EC Number Synonyms Comment Organism
1.7.2.2 ccNiR
-
Thioalkalivibrio nitratireducens
1.7.2.2 cytochrome c nitrite reductase
-
Thioalkalivibrio nitratireducens
1.7.2.2 multihaem c NiR
-
Thioalkalivibrio nitratireducens
1.7.2.2 TvNiR
-
Thioalkalivibrio nitratireducens

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
1.7.2.2 80
-
-
Thioalkalivibrio nitratireducens

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
1.7.2.2 30
-
at an enzyme concentration of 2 mg/ml in potassium phosphate buffer pH 7.0 the enzyme is stable at 30°C for at least 24 h Thioalkalivibrio nitratireducens
1.7.2.2 50
-
incubation at 50°C results in 1.5fold increase of activity Thioalkalivibrio nitratireducens
1.7.2.2 70
-
at 70°C the enzyme looses 50% of its activity in about 3 h Thioalkalivibrio nitratireducens
1.7.2.2 80
-
at 80°C activity decreases by 50% in 10min Thioalkalivibrio nitratireducens

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
1.7.2.2 7 10
-
Thioalkalivibrio nitratireducens

Cofactor

EC Number Cofactor Comment Organism Structure
1.7.2.2 heme 7.5 units heme per subunit Thioalkalivibrio nitratireducens

Ki Value [mM]

EC Number Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
1.7.2.2 0.01
-
cyanide
-
Thioalkalivibrio nitratireducens
1.7.2.2 60
-
sulfite
-
Thioalkalivibrio nitratireducens