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Literature summary for 1.11.1.6 extracted from

  • Monti, D.; Baldaro, E.; Riva, S.
    Separation and characterization of two catalase activities isolated from the yeast Trigonopsis variabilis (2003), Enzyme Microb. Technol., 32, 596-605.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
3-Amino-1,2,4-triazole TvC-I and TvC-II, inactivation Trigonopsis variabilis
CN- TvC-I and TvC-II, at micromolar range Trigonopsis variabilis
additional information no reduction of TvC-II by dithionite Trigonopsis variabilis
NaN3 TvC-I and TvC-II, at micromolar range Trigonopsis variabilis

Metals/Ions

Metals/Ions Comment Organism Structure
Fe2+ TvC-II, heme-containing Trigonopsis variabilis

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
62900
-
4 * 62900, TvC-II, SDS-PAGE Trigonopsis variabilis
227300
-
TvC-II, gel filtration Trigonopsis variabilis

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
H2O2 Trigonopsis variabilis detoxification enzyme O2 + H2O
-
?

Organic Solvent Stability

Organic Solvent Comment Organism
chloroform ethanol/chloroform: TvC-I and TvC-II, quite stable to Trigonopsis variabilis
Ethanol ethanol/chloroform: TvC-I and TvC-II, quite stable to Trigonopsis variabilis

Organism

Organism UniProt Comment Textmining
Trigonopsis variabilis
-
2 enzymes TvC-I and TvC-II
-

Purification (Commentary)

Purification (Comment) Organism
TvC-II, 300fold to homogeneity, TvC-I partially purified, TvC-I separation from TvC-II Trigonopsis variabilis

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
117
-
partially purified TvC-I Trigonopsis variabilis
55000
-
purified TvC-II Trigonopsis variabilis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
H2O2
-
Trigonopsis variabilis O2 + H2O
-
?
H2O2 detoxification enzyme Trigonopsis variabilis O2 + H2O
-
?
additional information 2 enzymes TvC-I and TvC-II do not show peroxidase ctivity Trigonopsis variabilis ?
-
?

Subunits

Subunits Comment Organism
tetramer 4 * 62900, TvC-II, SDS-PAGE Trigonopsis variabilis

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
assay at Trigonopsis variabilis

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
55
-
TvC-I and TvC-II, rapid inactivation Trigonopsis variabilis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8
-
assay at Trigonopsis variabilis

pH Range

pH Minimum pH Maximum Comment Organism
3 10 pH-profile, TvC-I Trigonopsis variabilis
4 10 pH-profile, TvC-II Trigonopsis variabilis

pH Stability

pH Stability pH Stability Maximum Comment Organism
1 2 TvC-I, half-life: at least 50 h Trigonopsis variabilis
1 3 TvC-I, half-life: about 2 h Trigonopsis variabilis
2
-
and below, TvC-I is rapidly inactivated Trigonopsis variabilis
3
-
TvC-I, half-life: at least 50 h Trigonopsis variabilis
4 10 TvC-II is rapidly inactivated below pH 4.0 and above pH 10.0, at pH 6.0-10.0 the half-life is approximately 20 h, at pH 5.0 it is 45 h, at pH 4.0 77 h Trigonopsis variabilis