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Literature summary for 1.13.11.55 extracted from

  • Chen, Z.W.; Jiang, C.Y.; She, Q.; Liu, S.J.; Zhou, P.J.
    Key role of cysteine residues in catalysis and subcellular localization of sulfur oxygenase-reductase of Acidianus tengchongensis (2005), Appl. Environ. Microbiol., 71, 621-628.
    View publication on PubMedView publication on EuropePMC

Activating Compound

Activating Compound Comment Organism Structure
dithiothreitol 0.05 mM, 70°C, 109.3% activity Acidianus tengchongensis
dithiothreitol 0.05 mM, 9.3% increase of activity Acidianus tengchongensis
EDTA 10 mM, 70°C, 108.8% activity Acidianus tengchongensis
EDTA 0.05 mM, 8.8% increase of activity Acidianus tengchongensis
glutathione 0.05 mM, 70°C, 110% activity Acidianus tengchongensis
GSH 0.05 mM, 10.8% increase of activity Acidianus tengchongensis

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli HB101 Acidianus tengchongensis
overexpression of wild-type and mutant enzymes in Escherichia coli Acidianus tengchongensis

Protein Variants

Protein Variants Comment Organism
C101S mutant with reduced activity Acidianus tengchongensis
C101S 98.4% loss of activity Acidianus tengchongensis
C104S mutant with reduced activity Acidianus tengchongensis
C104S 99.2% loss of activity Acidianus tengchongensis
C31A complete loss of activity Acidianus tengchongensis
C31A mutant with reduced activity Acidianus tengchongensis
C31S complete loss of activity Acidianus tengchongensis
C31S mutant with reduced activity Acidianus tengchongensis

Inhibitors

Inhibitors Comment Organism Structure
Co2+ 1 mM,89.2% inhibition Acidianus tengchongensis
CoCl2 1 mM, 70°C, 10.8% activity Acidianus tengchongensis
Cu2+ 1 mM, 99.3% inhibition Acidianus tengchongensis
CuCl2 1 mM, 70°C, 0.7% activity Acidianus tengchongensis
Mg2+ 1 mM, 22.8% inhibition Acidianus tengchongensis
MgCl2 1 mM, 70°C, 77.2% activity Acidianus tengchongensis
Mn2+ 1 mM, 65.5% inhibition Acidianus tengchongensis
MnCl2 1 mM, 70°C, 34.5% activity Acidianus tengchongensis
N-ethylmaleimide 0.1-1 mM, 70°C, 0.02-0.03% activity Acidianus tengchongensis
NEM 0.1 mM, complete Acidianus tengchongensis
Ni2+ 1 mM, 87.5% inhibition Acidianus tengchongensis
NiCl2 1 mM, 70°C, 12.5% activity Acidianus tengchongensis
Zn2+ 1 mM, 70°C, 27% activity; 1 mM, 73% inhibition Acidianus tengchongensis

Localization

Localization Comment Organism GeneOntology No. Textmining
cytoplasm
-
Acidianus tengchongensis 5737
-
cytoplasm also associated with the cytoplasmic membrane Acidianus tengchongensis 5737
-
cytoplasmic membrane membrane-associated enzyme activity is colocalized with the activities of sulfite:acceptor oxidoreductase and thiosulfate:acceptor oxidoreductase to catalyze sulfur oxidation Acidianus tengchongensis
-
-

Organism

Organism UniProt Comment Textmining
Acidianus tengchongensis
-
-
-
Acidianus tengchongensis S5
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Acidianus tengchongensis
Superdex 200 gel-filtration Acidianus tengchongensis

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.04
-
mutant C104S, formation of sulfite plus thiosulfate, 70°C Acidianus tengchongensis
0.074
-
wild type in cellular lysate, formation of sulfite plus thiosulfate, 70°C Acidianus tengchongensis
0.08
-
mutant C101S, formation of sulfite plus thiosulfate, 70°C Acidianus tengchongensis
0.1078
-
wild type in supernatant, formation of sulfite plus thiosulfate, 70°C Acidianus tengchongensis
0.476
-
wild type in pellet, formation of sulfite plus thiosulfate, 70°C Acidianus tengchongensis
4.85
-
wild type, formation of sulfite plus thiosulfate, 70°C Acidianus tengchongensis

Storage Stability

Storage Stability Organism
-20°C Acidianus tengchongensis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
S + O2 + H2O
-
Acidianus tengchongensis HSO3- + H2S + H+
-
?
S + O2 + H2O
-
Acidianus tengchongensis S5 HSO3- + H2S + H+
-
?