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Literature summary for 1.11.1.6 extracted from

  • Chauvatcharin, N.; Vattanaviboon, P.; Switala, J.; Loewen, P.C.; Mongkolsuk, S.
    Cloning and characterization of katA, encoding the major monofunctional catalase from Xanthomonas campestris pv. phaseoli and characterization of the encoded catalase KatA (2003), Curr. Microbiol., 46, 83-87.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
gene katA, screening of a genetic library, and DNA sequence determination and analysis, phylogenetic analysis, temperature-sensitive expression in enzyme-deficient strain Escherichia coli at 28°C, 200-300fold overexpression in a Xanthomonas campestris mutant strain XpHR Xanthomonas campestris

Inhibitors

Inhibitors Comment Organism Structure
3-Amino-1,2,4-triazole strong inhibition Xanthomonas campestris
NaN3 strong inhibition Xanthomonas campestris

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
75
-
H2O2 pH 7.0, 37°C Xanthomonas campestris

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
H2O2 Xanthomonas campestris protective role of the enzyme O2 + H2O
-
?

Organism

Organism UniProt Comment Textmining
Xanthomonas campestris Q8L2Z7 pv. phaseoli, gene katA, enzyme KatA is the major enzyme of 2 different occurring in the organism
-

Purification (Commentary)

Purification (Comment) Organism
enzyme from a Xanthomonas campestris strain Xanthomonas campestris

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
955
-
recombinant enzyme Xanthomonas campestris

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
H2O2
-
Xanthomonas campestris O2 + H2O
-
?
H2O2 protective role of the enzyme Xanthomonas campestris O2 + H2O
-
?

Synonyms

Synonyms Comment Organism
KatA
-
Xanthomonas campestris

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
assay at Xanthomonas campestris

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
30
-
10 min, loss of 20% activity Xanthomonas campestris
55
-
10 min, loss of 50% activity Xanthomonas campestris

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
255000
-
H2O2 pH 7.0, 37°C Xanthomonas campestris

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6 9 broad optimum Xanthomonas campestris

pH Range

pH Minimum pH Maximum Comment Organism
6 9 rapid drop of activity below pH 6.0 and above pH 9.0 Xanthomonas campestris

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
0.001
-
NaN3 pH 7.0, 37°C Xanthomonas campestris
2
-
3-Amino-1,2,4-triazole pH 7.0, 37°C Xanthomonas campestris