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Literature summary for 3.2.1.8 extracted from

  • Kui, H.; Luo, H.; Shi, P.; Bai, Y.; Yuan, T.; Wang, Y.; Yang, P.; Dong, S.; Yao, B.
    Gene cloning, expression, and Characterization of a thermostable xylanase from Nesterenkonia xinjiangensis CCTCC AA001025 (2009), Appl. Biochem. Biotechnol., 162, 953-965.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
2-mercaptoethanol activates 1.9fold at 10 mM Nesterenkonia xinjiangensis

Cloned(Commentary)

Cloned (Comment) Organism
gene xyn11NX, DNA and amino acid sequence determination and analysis, expression of His-tagged enzyme in Escherichia coli strain BL21(DE3) Nesterenkonia xinjiangensis

Inhibitors

Inhibitors Comment Organism Structure
Ag+ complete inhibition at 1 mM Nesterenkonia xinjiangensis
Co2+
-
Nesterenkonia xinjiangensis
Cu2+
-
Nesterenkonia xinjiangensis
Hg2+ complete inhibition at 1 mM Nesterenkonia xinjiangensis
Pb2+
-
Nesterenkonia xinjiangensis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information kinetics Nesterenkonia xinjiangensis

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ activates Nesterenkonia xinjiangensis
Cr3+ activates 1.3fold at 10 mM Nesterenkonia xinjiangensis
Fe2+ activates Nesterenkonia xinjiangensis
K+ activates Nesterenkonia xinjiangensis
Li+ activates Nesterenkonia xinjiangensis
Mg2+ activates Nesterenkonia xinjiangensis
Mn2+ activates Nesterenkonia xinjiangensis
Na+ activates Nesterenkonia xinjiangensis

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
26000
-
x * 26000, recombinantenzyme, SDS-PAGE Nesterenkonia xinjiangensis

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
beta-1,4-xylan + H2O Nesterenkonia xinjiangensis
-
?
-
?
beta-1,4-xylan + H2O Nesterenkonia xinjiangensis CCTCC AA001025
-
?
-
?

Organism

Organism UniProt Comment Textmining
Nesterenkonia xinjiangensis D1KJJ7 gene xyn11NX
-
Nesterenkonia xinjiangensis CCTCC AA001025 D1KJJ7 gene xyn11NX
-

Purification (Commentary)

Purification (Comment) Organism
recombinant His-tagged enzyme from Escherichia coli strain BL21(DE3) to homnogeneity Nesterenkonia xinjiangensis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
beta-1,4-xylan + H2O
-
Nesterenkonia xinjiangensis ?
-
?
beta-1,4-xylan + H2O
-
Nesterenkonia xinjiangensis CCTCC AA001025 ?
-
?
beta-1,4-xylan + H2O from birchwood or oat spelt Nesterenkonia xinjiangensis xylobiose + xylotriose + ? most predominant products. Hydrolysis products of oat spelt xylan is 2.3 mM xylobiose and 0.652 mM xylotriose, and of birchwood xylan 4.95 mM xylobiose and 1.57 mM xylotriose ?
beta-1,4-xylan + H2O from birchwood or oat spelt Nesterenkonia xinjiangensis CCTCC AA001025 xylobiose + xylotriose + ? most predominant products. Hydrolysis products of oat spelt xylan is 2.3 mM xylobiose and 0.652 mM xylotriose, and of birchwood xylan 4.95 mM xylobiose and 1.57 mM xylotriose ?

Subunits

Subunits Comment Organism
? x * 26000, recombinantenzyme, SDS-PAGE Nesterenkonia xinjiangensis

Synonyms

Synonyms Comment Organism
More the enzyme belongs to glycosyl hydrolase family 11, GH11 Nesterenkonia xinjiangensis
Xyn11NX
-
Nesterenkonia xinjiangensis

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
55
-
recombinant enzyme Nesterenkonia xinjiangensis

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
20 70 activity range, profile, overview Nesterenkonia xinjiangensis

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
45 60 purified enzyme, pH 7.0, 60 min, 80% activity remaining Nesterenkonia xinjiangensis
70
-
purified enzyme, pH 7.0, 60 min, 55% activity remaining Nesterenkonia xinjiangensis
80
-
purified enzyme, pH 7.0, 60 min, 10% activity remaining Nesterenkonia xinjiangensis
90
-
purified enzyme, pH 7.0, 60 min, 5% activity remaining Nesterenkonia xinjiangensis

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
6.37
-
beta-1,4-xylan pH 7.0, 55°C, recombinant enzyme, birchwood xylan Nesterenkonia xinjiangensis
18.12
-
beta-1,4-xylan pH 7.0, 55°C, recombinant enzyme, oat spelt xylan Nesterenkonia xinjiangensis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
recombinant enzyme Nesterenkonia xinjiangensis

pH Range

pH Minimum pH Maximum Comment Organism
2 12 60% of maximal activity at pH 6.0 and pH 8.0, pH profile, recombinant enzyme, overview Nesterenkonia xinjiangensis

pH Stability

pH Stability pH Stability Maximum Comment Organism
5 11 purified recombinant enzyme, the enzyme retains more than 80% of initial activity after 1 h at pH 5.0-11.0 at 37 °C for 1 h Nesterenkonia xinjiangensis