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Literature summary for 5.3.1.5 extracted from

  • Kwon, H.J.; Kitada, M.; Horikoshi, K.
    Purification and properties of the D-xylose isomerase from alkalophilic Bacillus No. KX-6 (1987), Agric. Biol. Chem., 51, 1983-1989.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
Ag+
-
Bacillus sp. (in: Bacteria)
Cu2+
-
Bacillus sp. (in: Bacteria)
Fe2+
-
Bacillus sp. (in: Bacteria)
Hg2+
-
Bacillus sp. (in: Bacteria)
Pb2+
-
Bacillus sp. (in: Bacteria)
Zn2+
-
Bacillus sp. (in: Bacteria)

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.076
-
D-xylose
-
Bacillus sp. (in: Bacteria)

Metals/Ions

Metals/Ions Comment Organism Structure
Co2+ stimulates Bacillus sp. (in: Bacteria)

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
58000
-
2 * 58000, SDS-PAGE Bacillus sp. (in: Bacteria)
120000
-
gel filtration Bacillus sp. (in: Bacteria)

Organism

Organism UniProt Comment Textmining
Bacillus sp. (in: Bacteria)
-
No. KX-6
-
Bacillus sp. (in: Bacteria) No. KX-6
-
No. KX-6
-

Purification (Commentary)

Purification (Comment) Organism
-
Bacillus sp. (in: Bacteria)

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
7.5
-
-
Bacillus sp. (in: Bacteria)

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
D-Xylose
-
Bacillus sp. (in: Bacteria) D-Xylulose
-
?
D-Xylose
-
Bacillus sp. (in: Bacteria) No. KX-6 D-Xylulose
-
?

Subunits

Subunits Comment Organism
dimer 2 * 58000, SDS-PAGE Bacillus sp. (in: Bacteria)

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
60
-
-
Bacillus sp. (in: Bacteria)

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
40 80 40°C: about 40% of maximal activity, 80°C, about 30% of maximal activity Bacillus sp. (in: Bacteria)
50 70 50°C: about 55% of maximal activity, 70°C: about 65% of maximal activity Bacillus sp. (in: Bacteria)

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
pH 7.5, 30 min, stable up to Bacillus sp. (in: Bacteria)
60
-
pH 7.5, 30 min, about 35% loss of activity Bacillus sp. (in: Bacteria)
70
-
about 65% loss of activity Bacillus sp. (in: Bacteria)

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7 10
-
Bacillus sp. (in: Bacteria)

pH Range

pH Minimum pH Maximum Comment Organism
6 11 pH 6: about 50% of maximal activity, pH 11: about 65% of maximal activity Bacillus sp. (in: Bacteria)

pH Stability

pH Stability pH Stability Maximum Comment Organism
6 11 40°C, 30 min, stable Bacillus sp. (in: Bacteria)