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Literature summary extracted from

  • Sugio, T.; Oda, K.; Matsumoto, K.; Takai, M.; Wakasa, S.; Kamimura, K.
    Purification and characterization of sulfur reductase from a moderately thermophilic bacterial strain, TI-1, that oxidizes iron (1998), Biosci. Biotechnol. Biochem., 62, 705-709.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
1.12.98.4 8-hydroxyquinoline
-
thermophilic iron-oxidizing bacterium strain TI-1
1.12.98.4 ethylenediaminetetraacetic acid
-
thermophilic iron-oxidizing bacterium strain TI-1

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.12.98.4 1,10-phenanthroline
-
thermophilic iron-oxidizing bacterium strain TI-1
1.12.98.4 iodoacetic acid
-
thermophilic iron-oxidizing bacterium strain TI-1
1.12.98.4 N-ethylmaleimide
-
thermophilic iron-oxidizing bacterium strain TI-1
1.12.98.4 potassium tetrathionate
-
thermophilic iron-oxidizing bacterium strain TI-1
1.12.98.4 sodium dithionate
-
thermophilic iron-oxidizing bacterium strain TI-1
1.12.98.4 sodium sulfite
-
thermophilic iron-oxidizing bacterium strain TI-1
1.12.98.4 sodium thiosulfate
-
thermophilic iron-oxidizing bacterium strain TI-1

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
1.12.98.4 cytosol
-
thermophilic iron-oxidizing bacterium strain TI-1 5829
-

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
1.12.98.4 48000
-
2 * 48000, SDS-PAGE thermophilic iron-oxidizing bacterium strain TI-1
1.12.98.4 86000
-
gel-filtration thermophilic iron-oxidizing bacterium strain TI-1

Organism

EC Number Organism UniProt Comment Textmining
1.12.98.4 thermophilic iron-oxidizing bacterium strain TI-1
-
production of H2S, when grown in a medium containing ferrous ions, elemental sulfur and L-glutamic acid
-

Purification (Commentary)

EC Number Purification (Comment) Organism
1.12.98.4
-
thermophilic iron-oxidizing bacterium strain TI-1

Reaction

EC Number Reaction Comment Organism Reaction ID
1.12.98.4 H2 + (sulfide)n = hydrogen sulfide + (sulfide)n-1 two enzymes are involved in the production of H2S: the sulfur reductase and the thiosulfate reductase thermophilic iron-oxidizing bacterium strain TI-1

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.12.98.4 2.73
-
-
thermophilic iron-oxidizing bacterium strain TI-1

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.12.98.4 additional information no substrates are sulfite, thiosulfate, tetrathionate thermophilic iron-oxidizing bacterium strain TI-1 ?
-
?
1.12.98.4 sulfur + electron donor electron donor: NADH, NADPH not thermophilic iron-oxidizing bacterium strain TI-1 H2S + oxidized electron donor
-
?

Subunits

EC Number Subunits Comment Organism
1.12.98.4 homodimer 2 * 48000, SDS-PAGE thermophilic iron-oxidizing bacterium strain TI-1

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
1.12.98.4 60 70
-
thermophilic iron-oxidizing bacterium strain TI-1

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
1.12.98.4 60
-
100% activity for 30 min thermophilic iron-oxidizing bacterium strain TI-1
1.12.98.4 70
-
73% loss of activity for 30 min thermophilic iron-oxidizing bacterium strain TI-1
1.12.98.4 80
-
88% loss of activity for 30 min thermophilic iron-oxidizing bacterium strain TI-1

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
1.12.98.4 9
-
-
thermophilic iron-oxidizing bacterium strain TI-1

pH Stability

EC Number pH Stability pH Stability Maximum Comment Organism
1.12.98.4 8 10 complete loss of activity below pH 5 thermophilic iron-oxidizing bacterium strain TI-1