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Literature summary for 3.2.1.8 extracted from

  • Rakitin, A.L.; Ermakova, A.Y.; Ravin, N.V.
    Novel endoxylanases of the moderately thermophilic polysaccharide-degrading bacterium Melioribacter roseus (2015), J. Microbiol. Biotechnol., 25, 1476-1484.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
Cd2+ 2 mM, 10% residual activity; 2 mM, 21% residual activity; 2 mM, 25% residual activity Melioribacter roseus
Cu2+ 2 mM, 77% residual activity; 2 mM, no residual activity; 2 mM, no residual activity Melioribacter roseus
Hg2+ 2 mM, 23% residual activity; 2 mM, 73% residual activity; 2 mM, no residual activity Melioribacter roseus
Ni2+ 2 mM, 28% residual activity; 2 mM, 63% residual activity; 2 mM, 78% residual activity Melioribacter roseus
Pb2+ 2 mM, 18% residual activity; 2 mM, 46% residual activity; 2 mM, no residual activity Melioribacter roseus
Zn2+ 2 mM, 39% residual activity; 2 mM, 57% residual activity; 2 mM, 5% residual activity Melioribacter roseus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
birchwood xylan Km value 1.05 mg/ml, pH 6.5, 65°C Melioribacter roseus
additional information
-
birchwood xylan Km value 10.5 mg/ml, pH 6.5, 80°C Melioribacter roseus
additional information
-
birchwood xylan Km value 3.0 mg/ml, pH 6.5, 65°C Melioribacter roseus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
42000
-
x * 42000, SDS-PAGE Melioribacter roseus
68000
-
x * 68000, SDS-PAGE Melioribacter roseus
86000
-
x * 86000, SDS-PAGE Melioribacter roseus

Organism

Organism UniProt Comment Textmining
Melioribacter roseus I6Z823 cf. EC 3.2.1.136
-
Melioribacter roseus I6Z9A7
-
-
Melioribacter roseus I7A603
-
-
Melioribacter roseus JCM 17771 I6Z823 cf. EC 3.2.1.136
-
Melioribacter roseus JCM 17771 I6Z9A7
-
-
Melioribacter roseus JCM 17771 I7A603
-
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
41
-
substrate birchwood xylan, pH 6.5, 80°C Melioribacter roseus
41.8
-
substrate beechwood xylan, pH 6.5, 65°C Melioribacter roseus
55
-
substrate beechwood xylan, pH 6.5, 80°C Melioribacter roseus
75
-
substrate birchwood xylan, pH 6.5, 65°C Melioribacter roseus
1352
-
substrate beechwood xylan, pH 6.5, 65°C Melioribacter roseus
1920
-
substrate birchwood xylan, pH 6.5, 65°C Melioribacter roseus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
beechwood xylan + H2O
-
Melioribacter roseus xylohexaose + ? and larger products ?
beechwood xylan + H2O
-
Melioribacter roseus JCM 17771 xylohexaose + ? and larger products ?
beechwood xylan + H2O
-
Melioribacter roseus xylose + xylobiose + ? main products ?
beechwood xylan + H2O
-
Melioribacter roseus JCM 17771 xylose + xylobiose + ? main products ?
birchwood xylan + H2O
-
Melioribacter roseus xylohexaose + ? and larger products ?
birchwood xylan + H2O
-
Melioribacter roseus JCM 17771 xylohexaose + ? and larger products ?
birchwood xylan + H2O
-
Melioribacter roseus xylose + xylobiose + ? main products ?
birchwood xylan + H2O
-
Melioribacter roseus JCM 17771 xylose + xylobiose + ? main products ?
additional information no substrate: cellulose Melioribacter roseus ?
-
?
additional information no substrate: cellulose Melioribacter roseus JCM 17771 ?
-
?

Subunits

Subunits Comment Organism
? x * 42000, SDS-PAGE Melioribacter roseus
? x * 86000, SDS-PAGE Melioribacter roseus
? x * 68000, SDS-PAGE Melioribacter roseus

Synonyms

Synonyms Comment Organism
MROS_2090
-
Melioribacter roseus
MROS_2091
-
Melioribacter roseus
MROS_2495
-
Melioribacter roseus
Xyl2090
-
Melioribacter roseus
Xyl2091
-
Melioribacter roseus
Xyl2495
-
Melioribacter roseus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
65
-
-
Melioribacter roseus
80
-
-
Melioribacter roseus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
80
-
half-life 1 h Melioribacter roseus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5
-
-
Melioribacter roseus

pH Range

pH Minimum pH Maximum Comment Organism
9
-
50% of maximum activity Melioribacter roseus