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1.13.11.2: catechol 2,3-dioxygenase

This is an abbreviated version!
For detailed information about catechol 2,3-dioxygenase, go to the full flat file.

Word Map on EC 1.13.11.2

Reaction

catechol
+
O2
=
2-hydroxymuconate-6-semialdehyde

Synonyms

2,3-dihydroxybenzenesulfonate 2,3-dioxygenase, 3-sulfocatechol-2,3-dioxygenase, 3SC23O, A23O, AtdB, BupB, C2,3O, C23D, C23o, C23O-2G, C23O1, C23O2, C23Os, CatE, catechol 2,3 dioxygenase, catechol 2,3-di-2,3-pyrocatechase, catechol 2,3-dioxygenase, catechol 2,3-oxygenase, catechol oxygenase, catechol-2,3-dioxygenase, CbzE, CD-2,3, EC 1.13.1.2, ECDO, extradiol dioxygenase MhpB, Extradiol-cleaving catecholic dioxygenase, meta-cleavage dioxygenase, metapyrocatechase, More, oxygenase, PheB, pyrocatechol 2,3-dioxygenase, Saci_2295, SSO1223, SsoC2,3O, ssol_2912, tbuE, TdnC, TodE, XylE

ECTree

     1 Oxidoreductases
         1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)
             1.13.11 With incorporation of two atoms of oxygen
                1.13.11.2 catechol 2,3-dioxygenase

Temperature Stability

Temperature Stability on EC 1.13.11.2 - catechol 2,3-dioxygenase

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TEMPERATURE STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
22
-
9 days, crude enzyme is completely inactivated
30 - 50
32.5 - 35
Halalkalibacterium ligniniphilum
WP_017726464.1
3 h, no loss of activity
35
loss of 17.4% activity
35 - 40
rapid decline in activity
4 - 30
-
the two isoforms C23O1 and C23O2 are both highly stable in the temperature range of 4-30°C for 24 h. Their activities are kept best at 10°C and the residual activities are about 80% at 24 h, followed by 20°C with approximately 60% residual activies at 24 h. Their enzyme activities decline rapidly as the temperature increases above 50°C
40
Halalkalibacterium ligniniphilum
WP_017726464.1
half-life: 231 min
52
Halalkalibacterium ligniniphilum
WP_017726464.1
half-life: 116 min
54
Halalkalibacterium ligniniphilum
WP_017726464.1
half-life: 32 min
55
-
5 min, stable
56
Halalkalibacterium ligniniphilum
WP_017726464.1
half-life: 4 min
57
-
63% loss of activity within 10 min
75
-
40% loss of original activity
80
half-life: about 20 min
85
the structure of thermophilic C23O remains unchanged up to temperatures of 85°C
additional information