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Literature summary extracted from

  • Fetzner, S.; Muller, R.; Lingens, F.
    Degradation of 2-chlorobenzoate by Pseudomonas cepacia 2CBS (1989), Biol. Chem. Hoppe-Seyler, 370, 1173 - 1182.
    View publication on PubMed

Protein Variants

EC Number Protein Variants Comment Organism
1.14.12.13 additional information mutants are made by treatment with N-methyl-N'-nitro-N-nitrosoguanidine, mutants are unable to grow on 2-chlorobenzoate and catechol Burkholderia cepacia

General Stability

EC Number General Stability Organism
1.14.12.13 sucrose has stabilizing effect Burkholderia cepacia

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
1.14.12.13 Fe2+ exogenous, required for activity Burkholderia cepacia

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.14.12.13 2-chlorobenzoate + NADH + H+ + O2 Burkholderia cepacia first step of 2-chlorobenzoate degradation via meta-cleavage catechol + chloride + NAD+ + CO2
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?

Organism

EC Number Organism UniProt Comment Textmining
1.14.12.13 Burkholderia cepacia
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2CBS, isolated from water
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Purification (Commentary)

EC Number Purification (Comment) Organism
1.14.12.13 anion exchange Burkholderia cepacia

Reaction

EC Number Reaction Comment Organism Reaction ID
1.14.12.13 2-chlorobenzoate + NADH + H+ + O2 = catechol + chloride + NAD+ + CO2 multi-component dioxygenase system proposed: 1,2-hydroxylating, dehalogenating, decarboxylating Burkholderia cepacia

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.14.12.13 0.0085
-
crude extract, 3.4 mg protein per ml in the assay Burkholderia cepacia
1.14.12.13 0.043
-
after anion exchange: fraction A + B + NADH + Fe2+ Burkholderia cepacia

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.14.12.13 2-chlorobenzoate + NADH + H+ + O2 the oxygen in the enzymatically catechol is derived from molecular oxygen, the formed byproduct 2,3-dihydroxybenzoate is suggested to be a dead end metabolite Burkholderia cepacia catechol + chloride + NAD+ + CO2
-
?
1.14.12.13 2-chlorobenzoate + NADH + H+ + O2 first step of 2-chlorobenzoate degradation via meta-cleavage Burkholderia cepacia catechol + chloride + NAD+ + CO2
-
?

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
1.14.12.13 25
-
assay at Burkholderia cepacia

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
1.14.12.13 6.6
-
assay at Burkholderia cepacia

Cofactor

EC Number Cofactor Comment Organism Structure
1.14.12.13 NADH can not be replaced by NADPH Burkholderia cepacia