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Literature summary extracted from

  • Peraza, L.; Hansberg, W.
    Neurospora crassa catalases, singlet oxygen and cell differentiation (2002), Biol. Chem., 383, 569-575.
    View publication on PubMed

General Stability

EC Number General Stability Organism
1.11.1.6 isoform Cat-1, very stable for months, resistant to denaturizing agents such as urea or guanidine-HCl Neurospora crassa

Inhibitors

EC Number Inhibitors Comment Organism Structure
1.11.1.6 3-amino-1H-1,2,4-triazole
-
Aspergillus nidulans
1.11.1.6 3-amino-1H-1,2,4-triazole 50% inactivation in 1 h Neurospora crassa
1.11.1.6 hydroxyl radicals inactivation of isoform Cat-1 Neurospora crassa
1.11.1.6 KCN isoform Cat-2, IC50: 0.146 mM, catalase activity, IC50: 0.168 mM, peroxidase activity Neurospora crassa

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1.11.1.6 13
-
H2O2 isoform Cat-2 Neurospora crassa

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
1.11.1.6 extracellular isoform Cat-3 secreted Neurospora crassa
-
-

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
1.11.1.6 80000
-
-
Neurospora crassa

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.11.1.6 H2O2 Aspergillus nidulans
-
O2 + H2O
-
?
1.11.1.6 H2O2 Neurospora crassa two monofunctional catalases, Cat-1 and Cat-3, one catalase-peroxidase enzyme, Cat-2 O2 + H2O
-
?

Organism

EC Number Organism UniProt Comment Textmining
1.11.1.6 Aspergillus nidulans
-
isoform CatA
-
1.11.1.6 Neurospora crassa
-
isoforms Cat-1, Cat-2, Cat-3
-
1.11.1.6 Neurospora crassa Q8X182 isoform Cat-2
-

Oxidation Stability

EC Number Oxidation Stability Organism
1.11.1.6 oxidation by singlet oxygen Neurospora crassa

Purification (Commentary)

EC Number Purification (Comment) Organism
1.11.1.6 isoform Cat-2 Neurospora crassa
1.11.1.6 isoforms Cat-1, Cat-2, Cat-3 Neurospora crassa

Source Tissue

EC Number Source Tissue Comment Organism Textmining
1.11.1.6 cell culture
-
Aspergillus nidulans
-
1.11.1.6 cell culture
-
Neurospora crassa
-
1.11.1.6 conidium isoform Cat-1 mainly present Neurospora crassa
-
1.11.1.6 conidium isoform CatA Aspergillus nidulans
-
1.11.1.6 mycelium isoform Cat-3 mainly present Neurospora crassa
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.11.1.6 130
-
isoform Cat-2, peroxidase activity with 3,3-diaminobenzidine Neurospora crassa
1.11.1.6 470
-
isoform Cat-2, peroxidase activity with ascorbate Neurospora crassa
1.11.1.6 1300
-
isoform Cat-2, peroxidase activity with guaiacol Neurospora crassa
1.11.1.6 1600
-
isoform Cat-2, peroxidase activity with o-dianisidine Neurospora crassa

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.11.1.6 3,3'-diaminobenzidine + H2O2 isoform Cat-2 Neurospora crassa ? + H2O
-
?
1.11.1.6 ascorbate + H2O2 isoform Cat-2 Neurospora crassa ? + H2O
-
?
1.11.1.6 H2O2
-
Aspergillus nidulans O2 + H2O
-
?
1.11.1.6 H2O2 two monofunctional catalases, Cat-1 and Cat-3, one catalase-peroxidase enzyme, Cat-2 Neurospora crassa O2 + H2O
-
?
1.11.1.6 o-dianisidine + H2O2 isoform Cat-2 Neurospora crassa ? + H2O
-
?
1.11.1.6 o-methoxyphenol + H2O2 isoform Cat-2 Neurospora crassa ? + H2O
-
?
1.11.1.6 o-methoxyphenol + H2O2 i.e. guaiacol Neurospora crassa ? + H2O
-
?

Subunits

EC Number Subunits Comment Organism
1.11.1.6 monomer 1 * 80000, isoforms Cat-1, Cat-3 Neurospora crassa

Synonyms

EC Number Synonyms Comment Organism
1.11.1.6 CatA
-
Aspergillus nidulans

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
1.11.1.6 100
-
isoform Cat-1, half-life: 70 min Neurospora crassa

Turnover Number [1/s]

EC Number Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
1.11.1.6 125000
-
H2O2 isoform Cat-2 Neurospora crassa

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
1.11.1.6 4.75
-
isoform Cat-2, peroxidase activity Neurospora crassa
1.11.1.6 6.25
-
isoform Cat-2, catalase activity Neurospora crassa

Cofactor

EC Number Cofactor Comment Organism Structure
1.11.1.6 heme
-
Aspergillus nidulans
1.11.1.6 heme all isoforms have chlorine instead of ferro-protoheme IX at the active site Neurospora crassa

IC50 Value

EC Number IC50 Value IC50 Value Maximum Comment Organism Inhibitor Structure
1.11.1.6 0.168
-
isoform Cat-2, IC50: 0.146 mM, catalase activity, IC50: 0.168 mM, peroxidase activity Neurospora crassa KCN