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Literature summary for 1.97.1.9 extracted from

  • Stolz, J.F.; Oremland, R.S.
    Bacterial respiration of arsenic and selenium (1999), FEMS Microbiol. Rev., 23, 615-627.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
tungstate highly inhibitory Sulfurospirillum barnesii

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.012
-
selenate
-
Sulfurospirillum barnesii
0.016
-
selenate
-
Thauera selenatis

Localization

Localization Comment Organism GeneOntology No. Textmining
membrane
-
Sulfurospirillum barnesii 16020
-
periplasm
-
Thauera selenatis
-
-

Metals/Ions

Metals/Ions Comment Organism Structure
Molybdenum
-
Thauera selenatis
Molybdenum in the active site Sulfurospirillum barnesii

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
23000
-
1 * 96000, alpha, + 1 * 40000, beta, + 1 * 23000, gamma, SDS-PAGE Thauera selenatis
40000
-
1 * 96000, alpha, + 1 * 40000, beta, + 1 * 23000, gamma, SDS-PAGE Thauera selenatis
53000
-
1 * 82000 + 1 * 53000 + 1 *34000 + 1* 21000 Sulfurospirillum barnesii
82000
-
1 * 82000 + 1 * 53000 + 1 *34000 + 1* 21000 Sulfurospirillum barnesii
96000
-
1 * 96000, alpha, + 1 * 40000, beta, + 1 * 23000, gamma, SDS-PAGE Thauera selenatis
180000
-
gel filtration Thauera selenatis

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
selenate + electron donor Thauera selenatis selenate is the terminal electron acceptor in dissimilatory selenate reduction selenite + H2O + oxidized electron donor
-
?
selenate + electron donor Sulfurospirillum barnesii selenate is the terminal electron acceptor in dissimilatory selenate reduction selenite + H2O + oxidized electron donor
-
?
selenate + electron donor Anaerobacillus arseniciselenatis selenate is the terminal electron acceptor in dissimilatory selenate reduction selenite + H2O + oxidized electron donor
-
?
selenate + electron donor Sulfurospirillum barnesii SES-3 selenate is the terminal electron acceptor in dissimilatory selenate reduction selenite + H2O + oxidized electron donor
-
?

Organism

Organism UniProt Comment Textmining
Anaerobacillus arseniciselenatis
-
-
-
Sulfurospirillum barnesii
-
-
-
Sulfurospirillum barnesii SES-3
-
-
-
Thauera selenatis
-
selenate-respiring bacterium
-

Reaction

Reaction Comment Organism Reaction ID
selenite + H2O + acceptor = selenate + reduced acceptor active site molybdenum Sulfurospirillum barnesii

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
additional information no activity with nitrate, nitrite, sulfate, and chlorate Thauera selenatis ?
-
?
selenate + acetate
-
Thauera selenatis selenite + H2O + CO2
-
?
selenate + electron donor
-
Anaerobacillus arseniciselenatis selenite + H2O + oxidized electron donor
-
?
selenate + electron donor specific for selenate Thauera selenatis selenite + H2O + oxidized electron donor
-
?
selenate + electron donor enzyme also reduces nitrate, thiosulfate, and fumarate Sulfurospirillum barnesii selenite + H2O + oxidized electron donor
-
?
selenate + electron donor selenate is the terminal electron acceptor in dissimilatory selenate reduction Thauera selenatis selenite + H2O + oxidized electron donor
-
?
selenate + electron donor selenate is the terminal electron acceptor in dissimilatory selenate reduction Sulfurospirillum barnesii selenite + H2O + oxidized electron donor
-
?
selenate + electron donor selenate is the terminal electron acceptor in dissimilatory selenate reduction Anaerobacillus arseniciselenatis selenite + H2O + oxidized electron donor
-
?
selenate + electron donor enzyme also reduces nitrate, thiosulfate, and fumarate Sulfurospirillum barnesii SES-3 selenite + H2O + oxidized electron donor
-
?
selenate + electron donor selenate is the terminal electron acceptor in dissimilatory selenate reduction Sulfurospirillum barnesii SES-3 selenite + H2O + oxidized electron donor
-
?
selenate + glucose
-
Thauera selenatis ?
-
?
selenate + lactate
-
Sulfurospirillum barnesii selenite + H2O + acetate + HCO3-
-
?
selenate + lactate
-
Anaerobacillus arseniciselenatis selenite + H2O + acetate + HCO3-
-
?
selenate + lactate
-
Sulfurospirillum barnesii SES-3 selenite + H2O + acetate + HCO3-
-
?
selenate + malate
-
Anaerobacillus arseniciselenatis ?
-
?
selenate + pyruvate
-
Sulfurospirillum barnesii ?
-
?
selenate + pyruvate
-
Sulfurospirillum barnesii SES-3 ?
-
?
selenate + reduced benzyl viologen
-
Thauera selenatis selenite + H2O + oxidized benzyl viologen
-
?
selenate + reduced methyl viologen
-
Thauera selenatis selenite + H2O + oxidized methyl viologen
-
?
selenate + reduced methyl viologen
-
Sulfurospirillum barnesii selenite + H2O + oxidized methyl viologen
-
?
selenate + reduced methyl viologen
-
Sulfurospirillum barnesii SES-3 selenite + H2O + oxidized methyl viologen
-
?

Subunits

Subunits Comment Organism
More the gamma subunit may be identical with the cytochrome b Thauera selenatis
tetramer 1 * 82000 + 1 * 53000 + 1 *34000 + 1* 21000 Sulfurospirillum barnesii
trimer 1 * 96000, alpha, + 1 * 40000, beta, + 1 * 23000, gamma, SDS-PAGE Thauera selenatis

Synonyms

Synonyms Comment Organism
More enzyme probably belongs to the DMSO reductase family of mononuclear molybdenum enzymes Sulfurospirillum barnesii

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
additional information
-
maximal growth at a pH range of pH 9.0-11.0 Anaerobacillus arseniciselenatis

Cofactor

Cofactor Comment Organism Structure
cytochrome b
-
Thauera selenatis