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Literature summary for 1.8.2.2 extracted from

  • Denkmann, K.; Grein, F.; Zigann, R.; Siemen, A.; Bergmann, J.; van Helmont, S.; Nicolai, A.; Pereira, I.A.; Dahl, C.
    Thiosulfate dehydrogenase: a widespread unusual acidophilic c-type cytochrome (2012), Environ. Microbiol., 14, 2673-2688.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Allochromatium vinosum

Protein Variants

Protein Variants Comment Organism
C123G residue probably acts as sixth distal axial ligand of a heme iron, mutant is inactive Allochromatium vinosum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.66
-
ferricyanide S0.5 value, pH 4.0, 30°C Allochromatium vinosum

Localization

Localization Comment Organism GeneOntology No. Textmining
periplasm
-
Allochromatium vinosum
-
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
25798
-
25800, SDS-PAGE, x * 25798, calculated Allochromatium vinosum
25800
-
25800, SDS-PAGE, x * 25798, calculated Allochromatium vinosum

Organism

Organism UniProt Comment Textmining
Allochromatium vinosum D3RVD4
-
-
Allochromatium vinosum ATCC 17899 D3RVD4
-
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
5800
-
30°C, pH 5.0 Allochromatium vinosum
30000
-
30°C, pH 4.0 Allochromatium vinosum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2 thiosulfate + 2 ferricyanide
-
Allochromatium vinosum tetrathionate + 2 ferrocyanide
-
?
2 thiosulfate + 2 ferricyanide
-
Allochromatium vinosum ATCC 17899 tetrathionate + 2 ferrocyanide
-
?

Subunits

Subunits Comment Organism
? 25800, SDS-PAGE, x * 25798, calculated Allochromatium vinosum

Synonyms

Synonyms Comment Organism
Alvin_0091 locus name Allochromatium vinosum
TsdA
-
Allochromatium vinosum

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
14000
-
thiosulfate pH 4.0, 30°C Allochromatium vinosum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4
-
-
Allochromatium vinosum

pH Range

pH Minimum pH Maximum Comment Organism
6.8
-
no residual activity Allochromatium vinosum

Cofactor

Cofactor Comment Organism Structure
heme diheme cytochrome c, residues methionine M222 or M236 and cysteine C123 are probable sixth distal axial ligands of the two heme irons Allochromatium vinosum

General Information

General Information Comment Organism
physiological function a gene deletion mutant does not produce any tetrathionate from thiosulfate during growth at pH 7.2 or 6.9 Allochromatium vinosum