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Literature summary extracted from

  • Li, Y.; Liu, Z.; Cui, F.; Ping, L.; Qiu, C.; Li, G.; Yan, L.
    Isolation and identification of a newly isolated Alternaria sp. ND-16 and characterization of xylanase (2009), Appl. Biochem. Biotechnol., 157, 36-49.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
3.2.1.8 (NH4)2SO4 xylanase activity is 9.7 U/ml with 0.1% urea Alternaria mali
3.2.1.8 Ca2+ slightly stimulates Alternaria mali
3.2.1.8 casein hydrolysate xylanase activity is 5.3 U/ml with 0.1% urea Alternaria mali
3.2.1.8 Co2+ slightly stimulates Alternaria mali
3.2.1.8 Mg2+ slightly stimulates Alternaria mali
3.2.1.8 NaNO3 xylanase activity is 11.9 U/ml with 0.1% urea Alternaria mali
3.2.1.8 NH4Cl xylanase activity is 10.5 U/ml with 0.1% urea Alternaria mali
3.2.1.8 tryptone xylanase activity is 6.5 U/ml with 0.1% urea Alternaria mali
3.2.1.8 Urea maximum xylanase activity (14.2 U/ml) is evident with 0.1% urea Alternaria mali
3.2.1.8 yeast extract xylanase activity is 6.2 U/ml with 0.1% urea Alternaria mali

Application

EC Number Application Comment Organism
3.2.1.8 industry the suitable temperature range for industrial application of xylanase from Alternaria mali ND-16 is 50-55°C Alternaria mali

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.2.1.8 Mn2+ strongly inhibits 80.5% of xylanase activity Alternaria mali
3.2.1.8 additional information K+, Li+, Fe2+, Cu2+, and Zn2+ have no significant effect on activity. Slight decrease in xylanase production for both oat spelt xylan medium and wheat bran medium when prolonging the cultivation time Alternaria mali
3.2.1.8 Na+ strongly inhibits 33.2% of xylanase activity Alternaria mali

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.8 Alternaria mali
-
-
-
3.2.1.8 Alternaria mali ND-16
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.2.1.8 partially purified by ammonium sulphate fractionation Alternaria mali

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.8 additional information no activity with starch, glucose, fructose, sorbitol, or maltose Alternaria mali ?
-
 ?
3.2.1.8 additional information no activity with starch, glucose, fructose, sorbitol, or maltose Alternaria mali ND-16 ?
-
 ?
3.2.1.8 oat spelt xylan + H2O xylanase production only reaches 5.7 and 11.7 U/ml when using pure xylan (oat spelt xylan) as the carbon source at 0.5% and 1% level, respectively Alternaria mali ?
-
 ?
3.2.1.8 oat spelt xylan + H2O xylanase production only reaches 5.7 and 11.7 U/ml when using pure xylan (oat spelt xylan) as the carbon source at 0.5% and 1% level, respectively Alternaria mali ND-16 ?
-
 ?
3.2.1.8 wheat bran + H2O xylanase production is highest (19.1 U/ml) when 1% wheat bran is added as the carbon source Alternaria mali ?
-
 ?
3.2.1.8 wheat bran + H2O xylanase production is highest (19.1 U/ml) when 1% wheat bran is added as the carbon source Alternaria mali ND-16 ?
-
 ?

Synonyms

EC Number Synonyms Comment Organism
3.2.1.8 xylanase
-
 Alternaria mali

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.2.1.8 50
-
-
 Alternaria mali

Temperature Range [°C]

EC Number Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
3.2.1.8 50 55
-
 Alternaria mali

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.2.1.8 45 55 slight decrease in xylanase activity between 45°C (93.4%) and 55°C (97.7%). Enzyme activity is rapidly reduced to 59.3% when the temperature is at 60°C, and there is negligible activity (5.4%) above 80°C Alternaria mali

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.2.1.8 6
-
-
 Alternaria mali

pH Range

EC Number pH Minimum pH Maximum Comment Organism
3.2.1.8 5.8 6.2
-
 Alternaria mali