Isoamylase

An Isoamylase is an Enzyme that hydrolyzes (1->6)-alpha-D-glucosidic branch linkages in glycoge.

• • AKA: Debranching Enzyme, Glycogen alpha-1,6-Glucanohydrolase.
• Example(s):
  • Pseudomonas Amyloderamosa.
  • …
• Counter-Example(s):
  • Sucrase-Isomaltase,
  • Amylo-Alpha-1,6-Glucosidase,
  • Pullulanase,
  • Limit Dextrinase,
  • Sucrose Alpha-Glucosidase.
• See: Amylopectin, Enzyme, List of Enzymes, Catalysis, Chemical Reaction, Hydrolysis, Glycogen.

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References

2019a

• (Wikipedia, 2019) ⇒ https://en.wikipedia.org/wiki/Isoamylase Retrieved:2019-3-28.
  • Isoamylase (EC 3.2.1.68, debranching enzyme, glycogen alpha-1,6-glucanohydrolase) is an enzyme with systematic name glycogen 6-alpha-D-glucanohydrolase. This enzyme catalyses the following chemical reaction

     : Hydrolysis of (1->6)-alpha-D-glucosidic branch linkages in glycogen, amylopectin and their beta-limit dextrins

    This enzyme also readily hydrolyses amylopectin.

2019b

• (EC, 2019) ⇒ https://enzyme.expasy.org/EC/3.2.1.68 Retrieved:2019-3-28.
  • QUOTE: Hydrolysis of (1->6)-alpha-D-glucosidic branch linkages in glycogen, amylopectin and their beta-limit dextrins (...)
    • Also readily hydrolyzes amylopectin.
    • Differs from EC 3.2.1.41 and EC 3.2.1.142 by its inability to hydrolyze pullulan, and by limited action on alpha-limit dextrins.
    • Maltose is the smallest sugar it can release from an alpha-(1->6)- linkage.

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