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Literature summary for 3.2.1.8 extracted from

  • Abdul Wahab, M.; Jonet, M.; Illias, R.
    Thermostability enhancement of xylanase Aspergillus fumigatus RT-1 (2016), J. Mol. Catal. B, 134, 154-163.
No PubMed abstract available

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Aspergillus fumigatus

Protein Variants

Protein Variants Comment Organism
A60D increase in thermostability and in optimum temperature Aspergillus fumigatus
Q47P/S159R increase in thermostability and in optimum temperature Aspergillus fumigatus
S68R increase in thermostability and in optimum temperature Aspergillus fumigatus
T16A/T39I/L176Q increase in thermostabilityand in optimum temperature Aspergillus fumigatus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
beechwood xylan Km value for wild-type 12.9 mg/ml, mutant T16A/T39I/L176Q 8.9 mg/ml, mutant S68R 12.2 mg/ml, mutant A60D 14.2 mg/ml, mutant Q47P/S159R 11.75 mg/ml, respectively, pH 5.0, 50°C Aspergillus fumigatus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
23000
-
x * 23000, SDS-PAGE Aspergillus fumigatus

Organism

Organism UniProt Comment Textmining
Aspergillus fumigatus E0X4B3
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
beechwood xylan + H2O
-
Aspergillus fumigatus xylo-oligosaccharides
-
?

Subunits

Subunits Comment Organism
? x * 23000, SDS-PAGE Aspergillus fumigatus

Synonyms

Synonyms Comment Organism
XynG1
-
Aspergillus fumigatus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
wild-type and mutants S68R and Q47P/S159R Aspergillus fumigatus
60
-
mutant A60D Aspergillus fumigatus
70
-
mutant T16A/T39I/L176Q Aspergillus fumigatus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
70
-
1 h, complete loss of activity for wild-type, 46% residual activity for mutant T16A/T39I/L176Q, 33% for mutant A60D, 25.8% for mutant S68R, 23.8% for mutant Q47P/S159R Aspergillus fumigatus