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Literature summary for 2.4.1.1 extracted from

  • Oluoha, U.; Ugochukwu, E.N.
    Isolation and kinetic properties of phosphorylase from yellow yam tuber (Dioscorea cayenensis) (1991), Biol. Plant., 33, 249-261.
No PubMed abstract available
Search for more literature for 2.4.1.1

Activating Compound

Activating Compound Comment Organism Structure
5'-AMP activation Dioscorea cayenensis

Inhibitors

Inhibitors Comment Organism Structure
ADP
-
 Dioscorea cayenensis
ADPglucose
-
 Dioscorea cayenensis
ATP
-
 Dioscorea cayenensis
sulfate
-
 Dioscorea cayenensis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
 additional information kinetic data Dioscorea cayenensis

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ activation Dioscorea cayenensis

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
[(1->4)-alpha-D-glucosyl]n + phosphate Dioscorea cayenensis pathway in starch [(1->4)-alpha-D-glucosyl]n-1 + alpha-D-glucose 1-phosphate
-
 ?

Organism

Organism UniProt Comment Textmining
Dioscorea cayenensis
-
 yellow yam
-

Purification (Commentary)

Purification (Comment) Organism
2 enzymes, DC1 and 2, starch adsorption, DEAE-Sephadex Dioscorea cayenensis

Source Tissue

Source Tissue Comment Organism Textmining
tuber
-
 Dioscorea cayenensis
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
300
-
 isozyme DC2 Dioscorea cayenensis
400
-
 isozyme DC1 Dioscorea cayenensis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
[(1->4)-alpha-D-glucosyl]n + phosphate polyglucose primer required Dioscorea cayenensis [(1->4)-alpha-D-glucosyl]n-1 + alpha-D-glucose 1-phosphate
-
 r
[(1->4)-alpha-D-glucosyl]n + phosphate pathway in starch Dioscorea cayenensis [(1->4)-alpha-D-glucosyl]n-1 + alpha-D-glucose 1-phosphate
-
 ?