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Literature summary extracted from

  • Brychkova, G.; Yarmolinsky, D.; Ventura, Y.; Sagi, M.
    A novel in-gel assay and an improved kinetic assay for determining in vitro sulfite reductase activity in plants (2012), Plant Cell Physiol., 53, 1507-1516.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
1.8.7.1 NADPH NADPH as an additional electron donor to methyl viologen enhances enzyme activity by 1.6fold Arabidopsis thaliana
1.8.7.1 NADPH NADPH as an additional electron donor to methyl viologen enhances enzyme activity by 2.8fold Solanum lycopersicum
1.8.7.1 NADPH the addition of NADPH to the reaction medium increases enzyme activity by 1.6fold Arabidopsis thaliana
1.8.7.1 NADPH the addition of NADPH to the reaction medium increases enzyme activity by 2.8fold Solanum lycopersicum
1.8.7.1 tungstic acid stimulates activity Arabidopsis thaliana
1.8.7.1 tungstic acid stimulates activity Solanum lycopersicum

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
1.8.7.1 tungstate 1 mM tungstate improves enzyme activity in Arabidopsis leaf by 12% Solanum lycopersicum
1.8.7.1 tungstate 1 mM tungstate improves enzyme activity in Arabidopsis leaf by 29% Arabidopsis thaliana

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.8.7.1 sulfite + reduced ferredoxin Arabidopsis thaliana
-
 hydrogen sulfide + oxidized ferredoxin + H2O
-
 ?
1.8.7.1 sulfite + reduced ferredoxin Solanum lycopersicum
-
 hydrogen sulfide + oxidized ferredoxin + H2O
-
 ?
1.8.7.1 sulfite + reduced ferredoxin + H+ Arabidopsis thaliana
-
 hydrogen sulfide + oxidized ferredoxin + H2O
-
 ?
1.8.7.1 sulfite + reduced ferredoxin + H+ Solanum lycopersicum
-
 hydrogen sulfide + oxidized ferredoxin + H2O
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
1.8.7.1 Arabidopsis thaliana
-
-
-
1.8.7.1 Arabidopsis thaliana
-
 ecotype Columbia-0
-
1.8.7.1 Solanum lycopersicum
-
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.8.7.1 leaf
-
 Arabidopsis thaliana
-
1.8.7.1 leaf
-
 Solanum lycopersicum
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.8.7.1 additional information no activity with NADPH as single electron donor Arabidopsis thaliana ?
-
 ?
1.8.7.1 additional information no activity with NADPH as single electron donor Solanum lycopersicum ?
-
 ?
1.8.7.1 sulfite + reduced ferredoxin
-
 Arabidopsis thaliana hydrogen sulfide + oxidized ferredoxin + H2O
-
 ?
1.8.7.1 sulfite + reduced ferredoxin
-
 Solanum lycopersicum hydrogen sulfide + oxidized ferredoxin + H2O
-
 ?
1.8.7.1 sulfite + reduced ferredoxin + H+
-
 Arabidopsis thaliana hydrogen sulfide + oxidized ferredoxin + H2O
-
 ?
1.8.7.1 sulfite + reduced ferredoxin + H+
-
 Solanum lycopersicum hydrogen sulfide + oxidized ferredoxin + H2O
-
 ?
1.8.7.1 sulfite + reduced methyl viologen + H+
-
 Arabidopsis thaliana hydrogen sulfide + oxidized methyl viologen + H2O
-
 ?
1.8.7.1 sulfite + reduced methyl viologen + H+
-
 Solanum lycopersicum hydrogen sulfide + oxidized methyl viologen + H2O
-
 ?

Synonyms

EC Number Synonyms Comment Organism
1.8.7.1 Fd-SiR
-
 Arabidopsis thaliana
1.8.7.1 Fd-SiR
-
 Solanum lycopersicum
1.8.7.1 SIR
-
 Arabidopsis thaliana
1.8.7.1 SIR
-
 Solanum lycopersicum

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
1.8.7.1 60
-
 the enzyme exhibits thermostability up to 60°C, with activity decreasing after heating to higher temperatures Arabidopsis thaliana
1.8.7.1 60
-
 the enzyme exhibits thermostability up to 60°C, with activity decreasing after heating to higher temperatures Solanum lycopersicum