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Literature summary for 1.13.11.3 extracted from

  • Kurane, R.; Ara, K.; Nakamura, I.; Suzuki, T.; Fukuoka, S.
    Protocatechuate 3,4-dioxygenase from Nocardia erythropolis (1984), Agric. Biol. Chem., 48, 2105-2111.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
Ca2+
-
Nocardia erythropolis
Hg2+ 0.1 mM, 45% inhibition Nocardia erythropolis
iodoacetate
-
Nocardia erythropolis
N-ethylmaleimide
-
Nocardia erythropolis
Na2HAsO4 0.1 mM, 50% inhibition Nocardia erythropolis
Pb2+
-
Nocardia erythropolis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.1
-
protocatechuate
-
Nocardia erythropolis

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
150000
-
gel filtration Nocardia erythropolis

Organism

Organism UniProt Comment Textmining
Nocardia erythropolis
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Nocardia erythropolis

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
379 mg O2/min/ml Nocardia erythropolis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3,4-dihydroxybenzoate + O2 enzyme is active on a wide range of o-dihydroxyphenyl compounds Nocardia erythropolis 3-carboxy-cis,cis-muconate
-
?
3,4-dihydroxymandelic acid + O2 at 5.4% the rate of protocatechuic acid oxidation Nocardia erythropolis ?
-
?
3,4-dihydroxyphenylalanine + O2 at 10.7% the rate of protocatechuic acid oxidation Nocardia erythropolis ?
-
?
3-methylcatechol + O2 at 14.4% the rate of protocatechuic acid oxidation Nocardia erythropolis 2-methylmuconate
-
?
4-methylcatechol + O2 at 3.1% the rate of protocatechuic acid oxidation Nocardia erythropolis 3-methyl-cis,cis-muconate
-
?
catechol + O2 at 33.8% the rate of protocatechuic acid oxidation Nocardia erythropolis muconate
-
?
pyrogallol + O2 at 36% the rate of protocatechuic acid oxidation Nocardia erythropolis ?
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
40
-
-
Nocardia erythropolis

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
42
-
1 h, stable below Nocardia erythropolis
50
-
1 h, unstable above Nocardia erythropolis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8
-
-
Nocardia erythropolis

pH Stability

pH Stability pH Stability Maximum Comment Organism
7.6 8.6 most stable Nocardia erythropolis