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Literature summary extracted from

  • Oluoha, U.; Ndukwu, E.D.
    Alpha-glucan phosphorylase from cocoyam (Xanthosoma sagittifolium) tuber: properties and kinetics (1999), Biokemistry, 9, 37-48.
No PubMed abstract available

Activating Compound

EC Number Activating Compound Comment Organism Structure
2.4.1.1 5'-AMP activation of phosphorolysis Xanthosoma sagittifolium
2.4.1.1 indoleacetic acid activation of phosphorolysis Xanthosoma sagittifolium

Inhibitors

EC Number Inhibitors Comment Organism Structure
2.4.1.1 ADP
-
 Xanthosoma sagittifolium
2.4.1.1 ADPglucose
-
 Xanthosoma sagittifolium
2.4.1.1 ATP
-
 Xanthosoma sagittifolium
2.4.1.1 Na2SO4
-
 Xanthosoma sagittifolium

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
2.4.1.1 Ca2+ activation Xanthosoma sagittifolium
2.4.1.1 Mg2+ activation Xanthosoma sagittifolium

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
2.4.1.1 95000
-
 gel filtration Xanthosoma sagittifolium

Organism

EC Number Organism UniProt Comment Textmining
2.4.1.1 Xanthosoma sagittifolium
-
 cocoyam
-

Purification (Commentary)

EC Number Purification (Comment) Organism
2.4.1.1 ammonium sulfate, affinity chromatography, ion-exchange, gel filtration Xanthosoma sagittifolium

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.4.1.1 13.5
-
-
 Xanthosoma sagittifolium

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.4.1.1 [(1->4)-alpha-D-glucosyl]n + phosphate
-
 Xanthosoma sagittifolium [(1->4)-alpha-D-glucosyl]n-1 + alpha-D-glucose 1-phosphate
-
 r

Subunits

EC Number Subunits Comment Organism
2.4.1.1 monomer 1 * 95000 Xanthosoma sagittifolium