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1.11.1.6: catalase

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

Word Map on EC 1.11.1.6

Reaction

2 H2O2 =

O2
+ 2 H2O

Synonyms

Ab-catalase, BNC, caperase, CAT, CAT-1, CAT-A, CAT-P, Cat1.4, CatA, catalase, catalase A, catalase C, catalase form III, catalase P, catalase-1, catalase-A, catalase-peroxidase, catalase-phenol oxidase, CatB, CATC, CatF, CatG, CatP, CATPO, CcmC, CP, equilase, H2O2:H2O2 oxidoreductase, haem catalase, HPI-A, HPI-B, HPII, HTHP, hydrogen peroxide oxidoreductase, KAT, Kat E catalase, KatA, KatB, KatC, KatP, KpA, manganese catalase, More, optidase, PktA, polyethylene glycol-catalase, tyrosine-coordinated heme protein, VktA

ECTree

     1 Oxidoreductases
         1.11 Acting on a peroxide as acceptor
             1.11.1 Peroxidases
                1.11.1.6 catalase

pH Stability

pH Stability on EC 1.11.1.6 - catalase

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pH STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
1 - 2
-
TvC-I, half-life: at least 50 h
655372
1 - 3
-
TvC-I, half-life: about 2 h
655372
2
-
and below, TvC-I is rapidly inactivated
655372
3.8 - 7.8
approximately 20% activity is observed at pH 3.8 followed by a steady rise of activity as the pH is increased to 7.8 (100% activity)
712318
4 - 10
-
TvC-II is rapidly inactivated below pH 4.0 and above pH 10.0, at pH 6.0-10.0 the half-life is approximately 20 h, at pH 5.0 it is 45 h, at pH 4.0 77 h
655372
4 - 11
4 - 5
-
residual activity
439778
4.5
purified native enzyme, 15 min, 60°C, complete inactivation
725159
5 - 10
-
the enzyme is stable in the pH range of 5.0 to 10.0 after 1 h of treatment at 40°C
701415
5 - 13
-
-
743006
5.2 - 10.7
-
stable within
439773
6 - 10
6 - 11
-
over 80% remaining activity after 1 h at 30°C
654896
6 - 8
Beta vulgaris var. cicla
-
stable for 60 min at 25°C, stability in basic media lower than in acidic media
439775
6 - 9
-
maximum stability within, isoform Cat-3
439798
7 - 10
-
maximum stability within, isoform Cat-1
439798
7 - 11
-
maximum stability within, isoform Cat-2
439798
8
purified native enzyme, 15 min, 60°C, most stable at
725159
additional information
HTHP is stable under a wide range of pH values
699519