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Literature summary for 1.11.1.6 extracted from

  • Yu, Z.; Zheng, H.; Zhao, X.; Li, S.; Xu, J.; Song, H.
    High level extracellular production of a recombinant alkaline catalase in E. coli BL21 under ethanol stress and its application in hydrogen peroxide removal after cotton fabrics bleaching (2016), Biores. Technol., 214, 303-310 .
    View publication on PubMed

Application

Application Comment Organism
degradation application of KatA for elimination of H2O2 after cotton fabrics bleaching leads to less consumption of water, steam and electric power by 25%, 12% and 16.7% respectively without productivity and quality loss of cotton fabrics Bacillus subtilis
synthesis a total soluble catalase activity of 78,762 U/ml with the extracellular ratio of 92.5% is achieved by fed-batch fermentation in a 10 l fermentor Bacillus subtilis

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Bacillus subtilis

Localization

Localization Comment Organism GeneOntology No. Textmining
soluble
-
Bacillus subtilis
-
-

Organism

Organism UniProt Comment Textmining
Bacillus subtilis P26901
-
-
Bacillus subtilis 168 P26901
-
-

Purification (Commentary)

Purification (Comment) Organism
Triton X-100 supplementation can markedly improve extracellular ratio of KatA Bacillus subtilis

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
37000
-
pH 7.0, 37°C Bacillus subtilis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2 H2O2
-
Bacillus subtilis H2O + O2
-
?
2 H2O2
-
Bacillus subtilis 168 H2O + O2
-
?

Synonyms

Synonyms Comment Organism
KatA
-
Bacillus subtilis

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37 42
-
Bacillus subtilis

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
1 h, 78% residual activity Bacillus subtilis
60
-
1 h, 19% residual activity Bacillus subtilis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
12
-
-
Bacillus subtilis

pH Range

pH Minimum pH Maximum Comment Organism
4 5 loss of most of the activity Bacillus subtilis
7 12
-
Bacillus subtilis

pH Stability

pH Stability pH Stability Maximum Comment Organism
6 10 stable within Bacillus subtilis

Expression

Organism Comment Expression
Bacillus subtilis expression is induced by by 2% ethanol stress up