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Literature summary for 3.2.1.22 extracted from

  • Plant, A.R.; Moore, K.G.
    alpha-D-Mannosidase and alpha-D-galactosidase from protein bodies of Lupinus angustifolius cotyledons (1982), Phytochemistry, 21, 985-989.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
Ag+
-
Lupinus angustifolius
D-galactose
-
Lupinus angustifolius
Hg2+
-
Lupinus angustifolius

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.28
-
p-nitrophenyl alpha-D-galactose alpha-galactosidase I Lupinus angustifolius
0.56
-
p-nitrophenyl alpha-D-galactose alpha-galactosidase II Lupinus angustifolius

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
17000
-
alpha-galactosidase II, gel filtration Lupinus angustifolius
70800
-
alpha-galactosidase I, gel filtration Lupinus angustifolius

Organism

Organism UniProt Comment Textmining
Lupinus angustifolius
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Lupinus angustifolius

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
285
-
alpha-galactosidase II Lupinus angustifolius
1600
-
alpha-galactosidase I Lupinus angustifolius

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
p-nitrophenyl-alpha-D-galactoside + H2O
-
Lupinus angustifolius p-nitrophenol + alpha-D-galactose
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.5
-
alpha-galactosidase II Lupinus angustifolius
6.5
-
alpha-galactosidase I Lupinus angustifolius