Activating Compound | Comment | Organism | Structure |
---|---|---|---|
NaCl | highest activity for catalase at 2 M, for peroxidase at 1 M | Halobacterium salinarum |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
3-amino-1H-1,2,4-triazole | not inhibitory | Halobacterium salinarum | |
H2O2 | 50% inhibition for catalase at 4.5 mM, for peroxidase at 0.4 mM | Halobacterium salinarum | |
KCN | effective inhibition | Halobacterium salinarum | |
NaN3 | effective inhibition | Halobacterium salinarum |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.14 | - |
H2O2 | peroxidase activity | Halobacterium salinarum | |
3.7 | - |
H2O2 | catalase activity | Halobacterium salinarum |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
60300 | - |
4 * 60300, SDS-PAGE | Halobacterium salinarum |
240000 | - |
gel filtration | Halobacterium salinarum |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
H2O2 | Halobacterium salinarum | bifunctional catalase-peroxidase | O2 + H2O | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Halobacterium salinarum | - |
- |
- |
Purification (Comment) | Organism |
---|---|
to homogeneity, chromatography steps | Halobacterium salinarum |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
cell culture | - |
Halobacterium salinarum | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
43.2 | - |
catalase activity | Halobacterium salinarum |
104.3 | - |
peroxidase activity | Halobacterium salinarum |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
3,3'-diaminobenzidine + H2O2 | - |
Halobacterium salinarum | ? + H2O | - |
? | |
4-aminoantipyrine + H2O2 | - |
Halobacterium salinarum | ? + H2O | - |
? | |
ascorbate + H2O2 | - |
Halobacterium salinarum | ? + H2O | - |
? | |
H2O2 | bifunctional catalase-peroxidase | Halobacterium salinarum | O2 + H2O | - |
? | |
NADH + H2O2 | - |
Halobacterium salinarum | NAD+ + H2O | - |
? | |
NADPH + H2O2 | - |
Halobacterium salinarum | NADP+ + H2O | - |
? | |
o-dianisidine + H2O2 | - |
Halobacterium salinarum | ? + H2O | - |
? | |
reduced cytochrome c + H2O2 | - |
Halobacterium salinarum | oxidized cytochrome c + H2O | - |
? |
Subunits | Comment | Organism |
---|---|---|
tetramer | 4 * 60300, SDS-PAGE | Halobacterium salinarum |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
40 | - |
peroxidase activity | Halobacterium salinarum |
50 | - |
catalase activity | Halobacterium salinarum |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
70 | - |
50% of activity retained for peroxidase activity | Halobacterium salinarum |
90 | - |
catalase activity stable up to | Halobacterium salinarum |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
6.5 | - |
catalase activity | Halobacterium salinarum |
7.5 | - |
peroxidase activity | Halobacterium salinarum |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
heme | 1.43 hemes per tetramer | Halobacterium salinarum |
Ki Value [mM] | Ki Value maximum [mM] | Inhibitor | Comment | Organism | Structure |
---|---|---|---|---|---|
0.03 | - |
NaN3 | - |
Halobacterium salinarum | |
0.05 | - |
KCN | - |
Halobacterium salinarum |