1.13.11.3: protocatechuate 3,4-dioxygenase
This is an abbreviated version!
For detailed information about protocatechuate 3,4-dioxygenase, go to the full flat file.
Word Map on EC 1.13.11.3
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1.13.11.3
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catecholate
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1,2-dioxygenase
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intradiol
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4-hydroxybenzoate
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3,4-dihydroxybenzoate
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beta-ketoadipate
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ring-cleavage
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gentisate
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beta-carboxy-cis,cis-muconate
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enol-lactone
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hydroxyquinol
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orville
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lipscomb
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fuscum
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cis-muconate
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4-methylcatechols
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3,5-di-tert-butylcatechol
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analysis
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environmental protection
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degradation
- 1.13.11.3
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catecholate
-
1,2-dioxygenase
-
intradiol
- 4-hydroxybenzoate
- 3,4-dihydroxybenzoate
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beta-ketoadipate
-
ring-cleavage
- gentisate
- beta-carboxy-cis,cis-muconate
-
enol-lactone
- hydroxyquinol
-
orville
-
lipscomb
- fuscum
-
cis-muconate
- 4-methylcatechols
- 3,5-di-tert-butylcatechol
- analysis
- environmental protection
- degradation
Reaction
Synonyms
3,4-PCase, 3,4-PCD, 3,4-PCDase, 3,4-POD, EC 1.13.1.3, EC 1.99.2.3, More, oxygenase, protocatechuate 3,4-di-, P3,4DO, P3,4O enzyme, P34O, PCA 3,4-dioxygenase, PcaG, PcaH, PcaHG, PCD, protocatchetuate 3,4-dioxygenase, protocatechuate 3,4-dioxygenase, protocatechuate oxygenase, protocatechuic 3,4-dioxygenase, protocatechuic 3,4-oxygenase, protocatechuic acid oxidase
ECTree
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KM Value
KM Value on EC 1.13.11.3 - protocatechuate 3,4-dioxygenase
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0.06534
3,4-dihydroxybenzoate
free enzyme, at pH 7.4 and 37°C
0.095
3,4-dihydroxybenzoate
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multi-walled carbon nanotube-immobilized enzyme, at pH 10.0 and 60°C
0.15929
3,4-dihydroxybenzoate
Fe3O4 nanoparticles-immobilized enzyme, at pH 7.4 and 37°C
additional information
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measurement of Km at different pH values
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additional information
additional information
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rates (s-1) and dissocation constants (microM) for protocatechuate: Y408H: k+2 = 2.8, k-2 = 1.9, k+2 + k-2 = 4.7, K1 = 2600, Kd = 1100, Y408F: k+2 = 0.39, k-2 = 0.46, k+2 + k-2 = 0.85, K1 = 84, Kd = 45, Y408C: k+2 + k-2 = 0.67
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additional information
additional information
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substrate dissociation constant for protocatechuate: wild type = 2.5 microM, Y408H = 39 micro M, Y408C = 57 microM
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additional information
additional information
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the enzyme exhibits Michaelis-Menten kinetics for all substrates tested
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