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Literature summary for 3.2.1.8 extracted from

  • Sinma, K.; Khucharoenphaisan, K.; Kitpreechavanich, V.; Tokuyama, S.
    Purification and characterization of a thermostable xylanase from Saccharopolyspora pathumthaniensis S582 isolated from the gut of a termite (2011), Biosci. Biotechnol. Biochem., 75, 1957-1963.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
DMSO stimulates at 1 mM Saccharopolyspora pathumthaniensis
Urea stimulates at 1 mM Saccharopolyspora pathumthaniensis

Cloned(Commentary)

Cloned (Comment) Organism
DNA and amino acid sequence determination and analysis, expression in Escherichia coli strain JM109 Saccharopolyspora pathumthaniensis

Inhibitors

Inhibitors Comment Organism Structure
Ba2+
-
Saccharopolyspora pathumthaniensis
Cu2+ slight inhibition Saccharopolyspora pathumthaniensis
EDTA slight inhibition Saccharopolyspora pathumthaniensis
Fe2+ slight inhibition Saccharopolyspora pathumthaniensis
Hg2+ complete inhibition Saccharopolyspora pathumthaniensis
iodoacetic acid
-
Saccharopolyspora pathumthaniensis
Na+ slight inhibition Saccharopolyspora pathumthaniensis
Ni2+ slight inhibition Saccharopolyspora pathumthaniensis
SDS
-
Saccharopolyspora pathumthaniensis
Zn2+ slight inhibition Saccharopolyspora pathumthaniensis

Localization

Localization Comment Organism GeneOntology No. Textmining
extracellular
-
Saccharopolyspora pathumthaniensis
-
-

Metals/Ions

Metals/Ions Comment Organism Structure
Cs+ stimulates Saccharopolyspora pathumthaniensis
K+ stimulates slightly Saccharopolyspora pathumthaniensis
Rb+ stimulates Saccharopolyspora pathumthaniensis
Sn2+ stimulates slightly Saccharopolyspora pathumthaniensis

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
36000
-
x * 36000, SDS-PAGE Saccharopolyspora pathumthaniensis

Organism

Organism UniProt Comment Textmining
Saccharopolyspora pathumthaniensis E1APH5 isolated from the gut of a grass-feeding termite
-
Saccharopolyspora pathumthaniensis S582 E1APH5 isolated from the gut of a grass-feeding termite
-

Purification (Commentary)

Purification (Comment) Organism
native extracellular enzyme 167fold to homogeneity Saccharopolyspora pathumthaniensis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
additional information hydrolysis of best substrate beechwood xylan by the enzyme results in formation of xylobiose and xylose as major products. The enzyme is specific for xylan acting as an endo-type xylanase. Soluble oat spelt xylan is also a good substrate, while insoluble oat spelt xylan is not. No activity with Avicel, 4-nitrophenyl beta-D-xylopyranoside, and locust bean gum Saccharopolyspora pathumthaniensis ?
-
?
additional information hydrolysis of best substrate beechwood xylan by the enzyme results in formation of xylobiose and xylose as major products. The enzyme is specific for xylan acting as an endo-type xylanase. Soluble oat spelt xylan is also a good substrate, while insoluble oat spelt xylan is not. No activity with Avicel, 4-nitrophenyl beta-D-xylopyranoside, and locust bean gum Saccharopolyspora pathumthaniensis S582 ?
-
?

Subunits

Subunits Comment Organism
? x * 36000, SDS-PAGE Saccharopolyspora pathumthaniensis

Synonyms

Synonyms Comment Organism
More the enzyme is a member of the G10 glucohydrolase family Saccharopolyspora pathumthaniensis

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
70
-
-
Saccharopolyspora pathumthaniensis

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
40 80 activity range, profile, overview Saccharopolyspora pathumthaniensis

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
purified enzyme, 2 h, stable Saccharopolyspora pathumthaniensis
60
-
purified enzyme, half-life is 180 min Saccharopolyspora pathumthaniensis
70
-
purified enzyme, half-life is 120 min Saccharopolyspora pathumthaniensis
80
-
purified enzyme, inactivation Saccharopolyspora pathumthaniensis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5
-
-
Saccharopolyspora pathumthaniensis

pH Range

pH Minimum pH Maximum Comment Organism
5 10 activity range, profile, overview Saccharopolyspora pathumthaniensis

pH Stability

pH Stability pH Stability Maximum Comment Organism
5.5 10 purified enzyme, stable Saccharopolyspora pathumthaniensis