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Literature summary for 3.2.1.78 extracted from

  • Luo, H.; Wang, Y.; Wang, H.; Yang, J.; Yang, Y.; Huang, H.; Yang, P.; Bai, Y.; Shi, P.; Fan, Y.; Yao, B.
    A novel highly acidic beta-mannanase from the acidophilic fungus Bispora sp. MEY-1: gene cloning and overexpression in Pichia pastoris (2009), Appl. Microbiol. Biotechnol., 82, 453-461.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Bispora sp.

General Stability

General Stability Organism
enzyme is strongly resistant to pepsin and trypsin digestion Bispora sp.

Inhibitors

Inhibitors Comment Organism Structure
Hg2+ strong Bispora sp.
additional information enzymatic activity is not significantly affected by ions such as Ca2+, Cr3+, Co2+, Zn2+, Na+, K+, and Mg2+ Bispora sp.
Sodium dodecyl sulfate strong Bispora sp.

Metals/Ions

Metals/Ions Comment Organism Structure
Ag+ stimulation Bispora sp.
Fe3+ stimulation Bispora sp.
Mn2+ stimulation Bispora sp.
Ni2+ stimulation Bispora sp.

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
46800
-
x * 46800, SDS-PAGE Bispora sp.

Organism

Organism UniProt Comment Textmining
Bispora sp. B5LXD7
-
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3373
-
pH 1.5, 65°C Bispora sp.

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
glucomannan + H2O from konjac flour Bispora sp. ? 70% of the activity with locust bean gum ?
guar gum + H2O
-
Bispora sp. ? 14.8% of the activity with locust bean gum ?
locust bean gum + H2O
-
Bispora sp. ?
-
?

Subunits

Subunits Comment Organism
? x * 46800, SDS-PAGE Bispora sp.

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
65
-
-
Bispora sp.

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
40 70 more than 65% of maximum activity within Bispora sp.
70
-
20 min, 50% residual activity Bispora sp.

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
11.5
-
-
Bispora sp.

pH Range

pH Minimum pH Maximum Comment Organism
1 5.5 more than 70% of maximum activity within Bispora sp.