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Literature summary for 3.2.1.33 extracted from

  • Osterlund, B.R.; Hayakawa, K.; Madsen, N.B.; James, M.N.G.
    Crystallization of glycogen debranching enzyme (1984), J. Mol. Biol., 174, 557-559.
    View publication on PubMed

Crystallization (Commentary)

Crystallization (Comment) Organism
glycogen debranching enzyme Oryctolagus cuniculus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
160000
-
glycogen debranching enzyme, linear density gradient column Oryctolagus cuniculus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
glycogen phosphorylase-limit dextrin + H2O Oryctolagus cuniculus symmetric dextrin ?
-
?
glycogen phosphorylase-limit dextrin + H2O Oryctolagus cuniculus total degradation of glycogen is accomplished by the combined action of glycogen phosphorylase and glycogen debranching enzyme ?
-
?

Organism

Organism UniProt Comment Textmining
Oryctolagus cuniculus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
glycogen debranching enzyme Oryctolagus cuniculus

Source Tissue

Source Tissue Comment Organism Textmining
muscle skeletal Oryctolagus cuniculus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.7
-
-
Oryctolagus cuniculus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
glycogen phosphorylase-limit dextrin + H2O symmetric dextrin Oryctolagus cuniculus limit dextrin + D-glucose asymmetric dextrin r
glycogen phosphorylase-limit dextrin + H2O symmetric dextrin Oryctolagus cuniculus ?
-
?
glycogen phosphorylase-limit dextrin + H2O total degradation of glycogen is accomplished by the combined action of glycogen phosphorylase and glycogen debranching enzyme Oryctolagus cuniculus ?
-
?

Subunits

Subunits Comment Organism
monomer glycogen debranching enzyme, SDS-PAGE Oryctolagus cuniculus

Synonyms

Synonyms Comment Organism
glycogen debranching system EC 3.2.1.33 found in mammals and yeast is in a single polypeptide chain containing two active centres. The other activity is similar to that of EC 2.4.1.25, 4-alpha-glucanotransferase, which acts on the glycogen phosphorylase limit dextrin chains to expose the single glucose residues, which the 6-alpha-glucosidase activity can hydrolyse. Together, these two activities constitute the glycogen debranching system Oryctolagus cuniculus