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Literature summary for 3.2.1.37 extracted from

  • Gomez, M.; Isorna, P.; Rojo, M.; Estrada, P.
    Chemical mechanism of beta-xylosidase from Trichoderma reesei QM 9414: pH-dependence of kinetic parameters (2001), Biochimie, 83, 961-967.
    View publication on PubMed
Search for more literature for 3.2.1.37

Inhibitors

Inhibitors Comment Organism Structure
D-glucono-1,5-lactone competitive Trichoderma reesei
D-xylose competitive Trichoderma reesei
p-nitrophenol noncompetitive Trichoderma reesei

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.87
-
 4-methylumbelliferyl-beta-D-xylopyranoside pH 4.0, 55°C Trichoderma reesei
2.37
-
 xylobiose pH 4.0, 55°C Trichoderma reesei
3.11
-
 p-nitrophenyl-beta-D-xylopyranoside pH 4.0, 55°C Trichoderma reesei

Organism

Organism UniProt Comment Textmining
Trichoderma reesei
-
 QM 9414
-
Trichoderma reesei QM 9414
-
 QM 9414
-

Reaction

Reaction Comment Organism Reaction ID
(Xylbeta(1-4))x + H2O = beta-D-xylopyranose + (Xylbeta(1-4))x-1 ordered bi-bi mechanism, kinetics Trichoderma reesei
a

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-methylumbelliferyl-beta-D-xylopyranoside + H2O
-
 Trichoderma reesei 4-methylumbelliferone + beta-D-xylopyranose
-
 ?
4-methylumbelliferyl-beta-D-xylopyranoside + H2O
-
 Trichoderma reesei QM 9414 4-methylumbelliferone + beta-D-xylopyranose
-
 ?
4-nitrophenyl beta-D-xylopyranoside + H2O
-
 Trichoderma reesei 4-nitrophenol + beta-D-xylopyranose
-
 ?
4-nitrophenyl beta-D-xylopyranoside + H2O
-
 Trichoderma reesei QM 9414 4-nitrophenol + beta-D-xylopyranose
-
 ?
xylobiose + H2O best substrate Trichoderma reesei 2 D-xylose
-
 ?
xylobiose + H2O best substrate Trichoderma reesei QM 9414 2 D-xylose
-
 ?

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
46.6
-
 p-nitrophenol pH 4.0, 55°C Trichoderma reesei