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Literature summary for 3.2.1.22 extracted from

  • Lee, R.H.; Hsu, J.H.; Huang, H.J.; Lo, S.F.; Chen, S.C.
    Alkaline alpha-galactosidase degrades thylakoid membranes in the chloroplast during leaf senescence in rice (2009), New Phytol., 184, 596-606.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2
-
digalactosyl diacylglycerol at 37°C, pH 8.6 Oryza sativa
4.2
-
verbascose at 37°C, pH 8.6 Oryza sativa
7.8
-
stachyose at 37°C, pH 8.6 Oryza sativa
18
-
raffinose at 37°C, pH 8.6 Oryza sativa
25.4
-
melibiose at 37°C, pH 8.6 Oryza sativa

Localization

Localization Comment Organism GeneOntology No. Textmining
chloroplast
-
Oryza sativa 9507
-
thylakoid membrane
-
Oryza sativa 42651
-

Organism

Organism UniProt Comment Textmining
Oryza sativa
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Oryza sativa
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
digalactosyl diacylglycerol + H2O
-
Oryza sativa ?
-
?
melibiose + H2O
-
Oryza sativa D-galactose + D-glucose
-
?
raffinose + H2O
-
Oryza sativa sucrose + alpha-D-galactose
-
?
stachyose + H2O
-
Oryza sativa raffinose + D-galactose
-
?
verbascose + H2O
-
Oryza sativa alpha-D-galactose + alpha-D-glucopyranosyl-(1,2)-beta-D-fructofuranoside
-
?

Synonyms

Synonyms Comment Organism
AkalphaGal
-
Oryza sativa
alkaline alpha-galactosidase
-
Oryza sativa

General Information

General Information Comment Organism
physiological function AkalphaGal is a thylakoid membrane-degrading enzyme involved in the degradation of digalactosyl diacylglycerol during rice leaf senescence Oryza sativa