| EC |
3.2.1.142 |
| Accepted name: |
limit dextrinase |
| Reaction: |
Hydrolysis of (1→6)-α-D-glucosidic linkages in α- and β-limit dextrins of amylopectin and glycogen, and in amylopectin and pullulan |
| Glossary: |
pullulan = a linear polymer of (1→6)-linked maltotriose units |
| Other name(s): |
R-enzyme; amylopectin-1,6-glucosidase; dextrin α-1,6-glucanohydrolase |
| Systematic name: |
dextrin 6-α-glucanohydrolase |
| Comments: |
Plant enzymes with little or no action on glycogen. Action on amylopectin is incomplete, but action on α-limit dextrins is complete. Maltose is the smallest sugar it can release from an α-(1→6)-linkage. |
| Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc |
| References: |
| 1. |
Gordon, R.W., Manners, D.J. and Stark, J.R. The limit dextrinase of the broad bean (Vicia faba). Carbohydr. Res. 42 (1975) 125–134. |
| 2. |
Manners, D.J. Observations on the specificity and nomenclature of starch debranching enzymes. J. Appl. Glycosci. 44 (1997) 83–85. |
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| [EC 3.2.1.142 created 2000] |
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