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Literature summary for 1.20.2.1 extracted from

  • Santini, J.; Vanden Hoven, R.
    Molybdenum-containing arsenite oxidase of the chemolithoautotrophic arsenite oxidizer NT-26 (2004), J. Bacteriol., 186, 1614-1619.
    View publication on PubMedView publication on EuropePMC

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.061
-
arsenite pH 5.5, temperature not specified in the publication Pseudorhizobium banfieldiae
0.061
-
arsenite pH 5.5, temperature not specified in the publication arsenite-oxidising bacterium

Localization

Localization Comment Organism GeneOntology No. Textmining
periplasm
-
Pseudorhizobium banfieldiae
-
-
periplasm
-
arsenite-oxidising bacterium
-
-

Metals/Ions

Metals/Ions Comment Organism Structure
Iron protein contains two molybdenum and 9 or 10 iron atoms per alpha2beta2 unit Pseudorhizobium banfieldiae
Iron protein contains two molybdenum and 9 or 10 iron atoms per alpha2beta2 unit arsenite-oxidising bacterium

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
14000
-
2 * 98000, subunit aroA, plus 2 * 14000, subunit aroB, SDS-PAGE Pseudorhizobium banfieldiae
14000
-
2 * 98000, subunit aroA, plus 2 * 14000, subunit aroB, SDS-PAGE arsenite-oxidising bacterium
98000
-
2 * 98000, subunit aroA, plus 2 * 14000, subunit aroB, SDS-PAGE Pseudorhizobium banfieldiae
98000
-
2 * 98000, subunit aroA, plus 2 * 14000, subunit aroB, SDS-PAGE arsenite-oxidising bacterium
219000
-
gel filtration Pseudorhizobium banfieldiae
219000
-
gel filtration arsenite-oxidising bacterium

Organism

Organism UniProt Comment Textmining
arsenite-oxidising bacterium Q6VAL9 subunit aroB
-
arsenite-oxidising bacterium NT-26 Q6VAL9 subunit aroB
-
Pseudorhizobium banfieldiae Q6VAL8
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Pseudorhizobium banfieldiae
-
arsenite-oxidising bacterium

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
arsenite + H2O + 2,6-dichlorophenolindophenol
-
Pseudorhizobium banfieldiae arsenate + reduced 2,6-dichlorophenolindophenol
-
?
arsenite + H2O + 2,6-dichlorophenolindophenol
-
arsenite-oxidising bacterium arsenate + reduced 2,6-dichlorophenolindophenol
-
?
arsenite + H2O + 2,6-dichlorophenolindophenol
-
arsenite-oxidising bacterium NT-26 arsenate + reduced 2,6-dichlorophenolindophenol
-
?

Subunits

Subunits Comment Organism
tetramer 2 * 98000, subunit aroA, plus 2 * 14000, subunit aroB, SDS-PAGE Pseudorhizobium banfieldiae
tetramer 2 * 98000, subunit aroA, plus 2 * 14000, subunit aroB, SDS-PAGE arsenite-oxidising bacterium

Synonyms

Synonyms Comment Organism
AroA
-
Pseudorhizobium banfieldiae
aroB
-
arsenite-oxidising bacterium

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
8.6
-
arsenite pH 5.5, temperature not specified in the publication Pseudorhizobium banfieldiae
8.6
-
arsenite pH 5.5, temperature not specified in the publication arsenite-oxidising bacterium

Cofactor

Cofactor Comment Organism Structure
molybdenum cofactor protein contains two molybdenum and 9 or 10 iron atoms per alpha2beta2 unit Pseudorhizobium banfieldiae
molybdenum cofactor protein contains two molybdenum and 9 or 10 iron atoms per alpha2beta2 unit arsenite-oxidising bacterium

General Information

General Information Comment Organism
physiological function an aroA disruption mutant does not display arsenite oxidation activity, fails to grow chemolithoautotrophically with arsenite as the electron donor, but is able to grow in presence of 5 mM arsenite Pseudorhizobium banfieldiae