ENZYME entry: EC 3.2.1.10
Accepted Name |
oligo-1,6-glucosidase.
|
Alternative Name(s) |
alpha-methylglucosidase. |
isomaltase. |
oligosaccharide alpha-1,6-glucosidase. |
sucrase-isomaltase. |
Reaction catalysed |
Hydrolysis of (1->6)-alpha-D-glucosidic linkages in some oligosaccharides produced from starch and glycogen by alpha-amylase, and in isomaltose |
Comment(s) |
- This enzyme, like EC 3.2.1.33, can release an alpha-1->6-linked
glucose, whereas the shortest chain that can be released by
EC 3.2.1.41, EC 3.2.1.142 and EC 3.2.1.68 is maltose.
- It also hydrolyzes isomaltulose (palatinose), isomaltotriose and
panose, but has no action on glycogen or phosphorylase limit dextrin.
- The enzyme from intestinal mucosa is a single polypeptide chain that
also catalyzes the reaction of EC 3.2.1.48.
- Differs from EC 3.2.1.33 in its preference for short-chain substrates
and in its not requiring the 6-glucosylated residue to be at a branch
point, i.e. linked at both C-1 and C-4.
|
Cross-references |
BRENDA | 3.2.1.10 |
EC2PDB | 3.2.1.10 |
ExplorEnz | 3.2.1.10 |
PRIAM enzyme-specific profiles | 3.2.1.10 |
KEGG Ligand Database for Enzyme Nomenclature | 3.2.1.10 |
IUBMB Enzyme Nomenclature | 3.2.1.10 |
IntEnz | 3.2.1.10 |
MEDLINE | Find literature relating to 3.2.1.10 |
MetaCyc | 3.2.1.10 |
Rhea expert-curated reactions | 3.2.1.10 |
UniProtKB/Swiss-Prot |
Q08295, IMA2_YEAST; | P40884, IMA5_YEAST; | P0CW40, MALX2_YEAST; |
P53051, MALX3_YEAST; | P0CW41, MALX4_YEAST; | O06994, O16G1_BACSU; |
O34364, O16G2_BACSU; | O05242, O16G3_BACSU; | P21332, O16G_BACCE; |
P29093, O16G_BACF5; | Q9K8U9, O16G_HALH5; | P29094, O16G_PARTM; |
Q45101, O16G_WEICA; | P14410, SUIS_HUMAN; | P56729, SUIS_PIG; |
P07768, SUIS_RABIT; | P23739, SUIS_RAT; | O62653, SUIS_SUNMU; |
|
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ENZYME /
UniProtKB/Swiss-Prot entries corresponding to 3.2.1.-
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