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Literature summary for 3.2.1.37 extracted from

  • Chinen, I.; OOuchi, K.; Tamaki, H.; Fukuda, N.
    Purification and properties of thermostable beta-xylosidase from immature stalks of Saccharum officinarum L. (sugar cane) (1982), J. Biochem., 92, 1873-1881.
    View publication on PubMed

General Stability

General Stability Organism
xylose protects against thermal inactivation Saccharum officinarum

Inhibitors

Inhibitors Comment Organism Structure
Ag+ non-competitive inhibition Saccharum officinarum
beta-D-xylose competitive inhibition Saccharum officinarum
Hg2+ competitive inhibition Saccharum officinarum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.05
-
p-nitrophenyl beta-D-xylopyranoside
-
Saccharum officinarum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
62000
-
SDS-PAGE, gel filtration Saccharum officinarum

Organism

Organism UniProt Comment Textmining
Saccharum officinarum
-
sugar cane
-

Oxidation Stability

Oxidation Stability Organism
sensitive to photooxidation Saccharum officinarum

Posttranslational Modification

Posttranslational Modification Comment Organism
glycoprotein 13.5% carbohydrate moiety, arabinose, galactose residues Saccharum officinarum

Purification (Commentary)

Purification (Comment) Organism
to homogeneity by heat treatment, chromatography steps Saccharum officinarum

Source Tissue

Source Tissue Comment Organism Textmining
stem
-
Saccharum officinarum
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.8
-
-
Saccharum officinarum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
o-nitrophenyl beta-D-xylopyranoside + H2O
-
Saccharum officinarum o-nitrophenol + beta-D-xylopyranose
-
?
p-nitrophenyl beta-D-xylopyranoside + H2O more rapidly hydrolyzed than o-nitrophenyl beta-D-xylopyranoside Saccharum officinarum p-nitrophenol + beta-D-xylopyranose
-
?

Subunits

Subunits Comment Organism
monomer 1 * 62000, SDS-PAGE, gel filtration Saccharum officinarum

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
75
-
-
Saccharum officinarum

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
70
-
fully active within 1 h in the presence of 0.1% D-xylose Saccharum officinarum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.8
-
-
Saccharum officinarum