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Literature summary for 3.2.1.22 extracted from

  • Gaudreault, P.R.; Webb, J.A.
    Partial purification and properties of an alkaline alpha-galactosidase from mature leaves of Cucurbita pepo (1983), Plant Physiol., 71, 662-668.
    View publication on PubMedView publication on EuropePMC

Inhibitors

Inhibitors Comment Organism Structure
Ag+
-
Cucurbita pepo
Ca2+
-
Cucurbita pepo
Co2+
-
Cucurbita pepo
Cu2+
-
Cucurbita pepo
D-galactose
-
Cucurbita pepo
Hg2+
-
Cucurbita pepo
Mg2+
-
Cucurbita pepo
Mn2+
-
Cucurbita pepo
Ni2+
-
Cucurbita pepo
Zn2+
-
Cucurbita pepo

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
1
-
p-nitrophenyl alpha-D-galactoside
-
Cucurbita pepo
1.4
-
o-nitrophenyl alpha-D-galactoside
-
Cucurbita pepo
2
-
m-nitrophenyl alpha-D-galactoside
-
Cucurbita pepo
4.5
-
stachyose
-
Cucurbita pepo
36.4
-
raffinose
-
Cucurbita pepo

Organism

Organism UniProt Comment Textmining
Cucurbita pepo
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Cucurbita pepo

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.09
-
-
Cucurbita pepo

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
galactinol + H2O
-
Cucurbita pepo alpha-D-galactopyranose + myoinositol
-
?
m-nitrophenyl alpha-D-galactoside + H2O
-
Cucurbita pepo m-nitrophenol + D-galactose
-
?
melibiose + H2O
-
Cucurbita pepo D-galactose + D-glucose
-
?
o-nitrophenyl alpha-D-galactoside + H2O
-
Cucurbita pepo o-nitrophenol + D-galactose
-
?
p-nitrophenyl-alpha-D-galactoside + H2O
-
Cucurbita pepo p-nitrophenol + alpha-D-galactose
-
?
raffinose + H2O
-
Cucurbita pepo sucrose + D-galactose
-
?
stachyose + H2O
-
Cucurbita pepo ?
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
-
Cucurbita pepo