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1.8.3.1: sulfite oxidase

This is an abbreviated version!
For detailed information about sulfite oxidase, go to the full flat file.

Word Map on EC 1.8.3.1

Reaction

sulfite
+
O2
+
H2O
=
sulfate
+
H2O2

Synonyms

At-SO, AtSOX, CG7280, HSO, NIA, oxidase, sulfite, PSO, Shopper, SO, SorT, SOX, sulfite oxidase, sulfite oxidase homologue, sulfite: acceptor oxidoreductase, sulfite:acceptor oxidoreductase, sulfite:oxygen oxidoreductase, sulphite oxidase cytochrome b9, SUOX, YedY, YedYZ, ZmSO

ECTree

     1 Oxidoreductases
         1.8 Acting on a sulfur group of donors
             1.8.3 With oxygen as acceptor
                1.8.3.1 sulfite oxidase

Temperature Stability

Temperature Stability on EC 1.8.3.1 - sulfite oxidase

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TEMPERATURE STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
25
-
10 min stable
45 - 60
-
half-lives of 10 min at 60°C, 30 min at 55°C, and 3 h at 45°C, respectively
50
-
rapid inactivation
50 - 80
-
The enzyme retains 100% of residual activity up to 7 h of incubation at 50°C. Half life times of the enzyme at 60, 70 and 80°C are respectively 8, 6.5 and 1.5 h. The enzyme retains 30% of activity at 25°C and 45% at 90°C.
52
-
inactivation, protection by sulfate
54
-
reduced form has higher stability than oxidized form