Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 3.2.1.8 extracted from

  • Fernandez-Espinar, M.; Pinaga, F.; de Graaff, L.; Visser, J.; Ramon, D.; Valles, S.
    Purification, characterization and regulation of the synthesis of an Aspergillus nidulans acidic xylanase (1994), Appl. Microbiol. Biotechnol., 42, 555-562.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
Co2+ 1 mM, 81% inhibition Aspergillus nidulans
Cu2+ 1 mM, 37% inhibition Aspergillus nidulans
Hg2+ 1 mM, complete inhibition Aspergillus nidulans
Mn2+ 1 mM, 87% inhibition Aspergillus nidulans
PHMB 1 mM, 77% inhibition Aspergillus nidulans

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information
-
Aspergillus nidulans

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ 1 mM, slight activation Aspergillus nidulans
Fe2+ 1 mM, slight stimulation Aspergillus nidulans
Mg2+ 1 mM, slight stimulation Aspergillus nidulans

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
34000
-
x * 34000, SDS-PAGE Aspergillus nidulans

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1,4-beta-D-xylan + H2O Aspergillus nidulans repressed by glucose, induced by oat spelt xylan, arabinoxylan, 4-O-methylglucurono-xylan, birchwood xylan and xylose ?
-
?

Organism

Organism UniProt Comment Textmining
Aspergillus nidulans
-
-
-
Aspergillus nidulans CECT 2544
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Aspergillus nidulans

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Aspergillus nidulans
378
-
-
Aspergillus nidulans

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1,4-beta-D-xylan + H2O Remazol Brilliant Blue xylan Aspergillus nidulans additional information xylobiose + xylotriose + xylopentaose ?
1,4-beta-D-xylan + H2O birchwood xylan Aspergillus nidulans additional information xylobiose + xylotriose + xylopentaose ?
1,4-beta-D-xylan + H2O oat spelt xylan Aspergillus nidulans additional information xylobiose + xylotriose + xylopentaose ?
1,4-beta-D-xylan + H2O Remazol Brilliant Blue xylan Aspergillus nidulans CECT 2544 additional information xylobiose + xylotriose + xylopentaose ?
1,4-beta-D-xylan + H2O birchwood xylan Aspergillus nidulans CECT 2544 additional information xylobiose + xylotriose + xylopentaose ?
1,4-beta-D-xylan + H2O oat spelt xylan Aspergillus nidulans CECT 2544 additional information xylobiose + xylotriose + xylopentaose ?
1,4-beta-D-xylan + H2O repressed by glucose, induced by oat spelt xylan, arabinoxylan, 4-O-methylglucurono-xylan, birchwood xylan and xylose Aspergillus nidulans ?
-
?
4-O-methylglucurono-D-xylan + H2O
-
Aspergillus nidulans ?
-
?
4-O-methylglucurono-D-xylan + H2O
-
Aspergillus nidulans CECT 2544 ?
-
?
arabinoxylan + H2O
-
Aspergillus nidulans additional information
-
?
arabinoxylan + H2O
-
Aspergillus nidulans CECT 2544 additional information
-
?

Subunits

Subunits Comment Organism
? x * 34000, SDS-PAGE Aspergillus nidulans

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
56
-
hydrolysis of oat spelt xylan Aspergillus nidulans

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
56
-
9 h, more than 90% of maximal activity remains Aspergillus nidulans
60
-
half-life: 26 min Aspergillus nidulans
66
-
half-life: 3 min Aspergillus nidulans

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6
-
-
Aspergillus nidulans

pH Range

pH Minimum pH Maximum Comment Organism
4.8 8.4 pH 4.8: about 70% of maximal activity, pH 8.4: about 60% of maximal activity Aspergillus nidulans

pH Stability

pH Stability pH Stability Maximum Comment Organism
4 6.7 20 h, more than 80% of maximal activity remains Aspergillus nidulans