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Literature summary for 3.2.1.139 extracted from

  • Bronnenmeier, K.; Meissner, H.; Stocker, S.; Staudenbauer, W.L.
    alpha-D-Glucuronidases from the xylanolytic thermophiles Clostridium stercorarium and Thermoanaerobacterium saccharolyticum (1995), Microbiology, 141, 2033-2040.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
CuCl2
-
Thermoanaerobacterium saccharolyticum
CuCl2
-
Thermoclostridium stercorarium
ZnCl2 no inhibition Thermoanaerobacterium saccharolyticum
ZnCl2
-
Thermoclostridium stercorarium

Localization

Localization Comment Organism GeneOntology No. Textmining
intracellular
-
Thermoanaerobacterium saccharolyticum 5622
-
intracellular
-
Thermoclostridium stercorarium 5622
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
71000
-
2 * 71000, SDS-PAGE Thermoanaerobacterium saccharolyticum
72000
-
1 * 72000 + 1 * 76000, SDS-PAGE Thermoclostridium stercorarium
76000
-
1 * 72000 + 1 * 76000, SDS-PAGE Thermoclostridium stercorarium
118000
-
gel filtration Thermoanaerobacterium saccharolyticum
124000
-
gel filtration Thermoclostridium stercorarium

Organism

Organism UniProt Comment Textmining
Thermoanaerobacterium saccharolyticum
-
-
-
Thermoclostridium stercorarium
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Thermoanaerobacterium saccharolyticum
-
Thermoclostridium stercorarium

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.647
-
-
Thermoclostridium stercorarium
9.6
-
-
Thermoanaerobacterium saccharolyticum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-O-methyl-glucuronosyl-xylotriose + H2O
-
Thermoanaerobacterium saccharolyticum 4-O-methyl-glucuronate + xylotriose
-
?
4-O-methyl-glucuronosyl-xylotriose + H2O
-
Thermoclostridium stercorarium 4-O-methyl-glucuronate + xylotriose
-
?
additional information no activity with p-nitrophenyl-alpha-D-glucuronoside Thermoanaerobacterium saccharolyticum ?
-
?
additional information no activity with p-nitrophenyl-alpha-D-glucuronoside Thermoclostridium stercorarium ?
-
?

Subunits

Subunits Comment Organism
dimer 2 * 71000, SDS-PAGE Thermoanaerobacterium saccharolyticum
dimer 1 * 72000 + 1 * 76000, SDS-PAGE Thermoclostridium stercorarium

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
-
Thermoanaerobacterium saccharolyticum
60
-
-
Thermoclostridium stercorarium

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
-
Thermoanaerobacterium saccharolyticum
50
-
pH 6.0, 4 h, stable Thermoclostridium stercorarium
60
-
half-life: 14 h Thermoclostridium stercorarium
60
-
half-life: 2-3 h Thermoanaerobacterium saccharolyticum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6
-
-
Thermoanaerobacterium saccharolyticum
6
-
-
Thermoclostridium stercorarium

pH Range

pH Minimum pH Maximum Comment Organism
5 8 at least 40% of maximal activity at pH-values ranging from 5 to 8 Thermoanaerobacterium saccharolyticum
5 8 at least 40% of maximal activity at pH-values ranging from 5 to 8 Thermoclostridium stercorarium