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Literature summary for 3.2.1.48 extracted from

  • Muto, N.; Nakamura, T.; Yamamoto, I.
    Enzymatic formation of a nonreducing L-ascorbic acid alpha-glucoside: purification and properties of alpha-glucosidases catalyzing site-specific transglucosylation from rat small intestine (1990), J. Biochem., 107, 222-227.
    View publication on PubMed
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Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
maltose + H2O Rattus rattus
-
 2 glucose
-
 ?
sucrose + H2O Rattus rattus
-
 D-glucose + D-fructose
-
 ?

Organism

Organism UniProt Comment Textmining
Rattus rattus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
 Rattus rattus

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
9.5
-
 maltose to L-ascorbic acid alpha-glucoside forming activity Rattus rattus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-ascorbic acid alpha-glucoside + H2O
-
 Rattus rattus ?
-
 ?
maltose + H2O
-
 Rattus rattus 2 glucose
-
 ?
maltose + L-ascorbic acid
-
 Rattus rattus L-ascorbic acid alpha-D-glucoside enzyme form L-ascorbic acid alpha-glucoside by splitting maltose among the disaccharides r
sucrose + H2O
-
 Rattus rattus D-glucose + D-fructose
-
 ?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
60
-
 maximal activity of L-ascorbic acid alpha-glucoside formation and maltose hydrolysis Rattus rattus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.5 5 L-ascorbic acid alpha-glucoside formation Rattus rattus