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Literature summary for 3.2.1.25 extracted from

  • Ouellette, B.F.F.; Bewley, J.D.
    beta-Mannoside mannohydrolase and the mobilization of the endopsperm cell wall of lettuce seeds, cv. Grand rapids (1986), Planta, 169, 333-338.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
2-mercaptoethanol 0.05%, stabilizes Lactuca sativa

Inhibitors

Inhibitors Comment Organism Structure
2-amino-2-deoxy-D-mannose
-
Lactuca sativa
Cu2+
-
Lactuca sativa
D-mannono-1,4-lactone
-
Lactuca sativa
Hg2+
-
Lactuca sativa
Pb2+
-
Lactuca sativa
PMSF
-
Lactuca sativa

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.3
-
p-nitrophenyl-beta-D-mannopyranoside
-
Lactuca sativa

Organism

Organism UniProt Comment Textmining
Lactuca sativa
-
L. cv. Grand Rapids
-

Source Tissue

Source Tissue Comment Organism Textmining
seed cotyledons, in association with a cellulosic cell-wall fraction Lactuca sativa
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
p-nitrophenyl-beta-D-mannoside + H2O p-nitrophenyl-beta-D-mannopyranoside Lactuca sativa p-nitrophenol + alpha-D-mannose
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
-
Lactuca sativa

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
30
-
stable up to Lactuca sativa
40
-
15 min, stable up to Lactuca sativa

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.4
-
-
Lactuca sativa

pH Stability

pH Stability pH Stability Maximum Comment Organism
4.5 7 stable Lactuca sativa
6 10 unstable below pH 6.0 and above pH 10.0 Lactuca sativa