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Literature summary extracted from

  • Singh, S.; Sanwal, G.G.
    Multiple forms of alpha-glucan phosphorylase in banana fruits: properties and kinetics (1976), Phytochemistry, 15, 1447-1451.
No PubMed abstract available

Activating Compound

EC Number Activating Compound Comment Organism Structure
2.4.1.1 5'-AMP activation Musa x paradisiaca
2.4.1.1 ATP activation Musa x paradisiaca
2.4.1.1 ATP no activation of phosphorylase A or C Musa x paradisiaca
2.4.1.1 EDTA 5 mM, 46% activation of phosphorylase C, not A or B Musa x paradisiaca
2.4.1.1 additional information not activated by serine, leucine, isoleucine, methionine, ornithine, L-arginine Musa x paradisiaca

General Stability

EC Number General Stability Organism
2.4.1.1 dialysis for 24 h against water, stable to, phosphorylase A or C Musa x paradisiaca

Inhibitors

EC Number Inhibitors Comment Organism Structure
2.4.1.1 aromatic amino acid inhibition of phosphorylase B, not A or C Musa x paradisiaca
2.4.1.1 ATP 1 mM, 20% inhibition of phosphorylase B, 5 mM, 90% inhibition; phosphorylase A or C are not inhibited Musa x paradisiaca
2.4.1.1 DL-phenylalanine 1 mM, 33% inhibition of phosphorylase B Musa x paradisiaca
2.4.1.1 DL-tryptophan 1 mM, 41% inhibition of phosphorylase B Musa x paradisiaca
2.4.1.1 Hg2+ 0.05 mM, 21% inhibition of phosphorylase A, 73% inhibition of phosphorylase Musa x paradisiaca
2.4.1.1 L-tyrosine 1 mM, 48% inhibition of phosphorylase B Musa x paradisiaca
2.4.1.1 monohydroxyphenols 10 mM, 50, 40 and 65% inhibition of phosphorylases A, B and C Musa x paradisiaca
2.4.1.1 additional information not inhibited by 2-mercaptoethanol; not inhibited by non-aromatic amino acids; not inhibited by p-coumaric acid, caffeic acid or cinnamic acid Musa x paradisiaca
2.4.1.1 resorcinol 1 mM, 50% inhibition of phosphorylase A and B, 23% inhibition of phosphorylase C Musa x paradisiaca
2.4.1.1 Tannic acid 0.005 mg, complete inhibition of phosphorylase B, 63% and 50% inhibition of phosphorylase A and C respectively Musa x paradisiaca
2.4.1.1 UDPglucose 1 mM, 43, 27 and 18% inhibition of phosphorylases A, B and C respectively Musa x paradisiaca

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.4.1.1 additional information
-
additional information kinetic parameters of 3 starch phosphorylases Musa x paradisiaca
2.4.1.1 additional information
-
additional information 1.21 mg/ml, starch, phosphorylase C Musa x paradisiaca
2.4.1.1 additional information
-
additional information 1.1 mg/ml, glycogen, phosphorylase A Musa x paradisiaca
2.4.1.1 additional information
-
additional information 0.24 mg/ml starch, phosphorylase A Musa x paradisiaca
2.4.1.1 1.4
-
glucose 1-phosphate starch synthesis, phosphorylase A Musa x paradisiaca
2.4.1.1 2.2
-
glucose 1-phosphate maltose synthesis, phosphorylase A Musa x paradisiaca
2.4.1.1 2.7
-
glucose 1-phosphate starch synthesis, phosphorylase C Musa x paradisiaca
2.4.1.1 3.3
-
glucose 1-phosphate starch synthesis, phosphorylase B Musa x paradisiaca
2.4.1.1 4
-
glucose 1-phosphate maltose synthesis, phosphorylase C Musa x paradisiaca
2.4.1.1 5
-
glucose 1-phosphate glycogen synthesis, phosphorylase A Musa x paradisiaca

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
2.4.1.1 additional information not activated by Cu2+ Musa x paradisiaca

Organism

EC Number Organism UniProt Comment Textmining
2.4.1.1 Musa x paradisiaca
-
banana, cooking variety
-

Purification (Commentary)

EC Number Purification (Comment) Organism
2.4.1.1 phosphorylases A, B and C Musa x paradisiaca

Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.4.1.1 fruit
-
Musa x paradisiaca
-

Storage Stability

EC Number Storage Stability Organism
2.4.1.1 -18°C, phosphorylase A or C, at least 1 month Musa x paradisiaca
2.4.1.1 -20°C, phosphorylase B, at least 1 month Musa x paradisiaca
2.4.1.1 0-4°C, at least 1 month Musa x paradisiaca

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.4.1.1 (dextrin)n-1 + glucose 1-phosphate not phosphorylase B Musa x paradisiaca (dextrin)n + phosphate
-
r
2.4.1.1 (dextrin)n-1 + glucose 1-phosphate achrodextrin Musa x paradisiaca (dextrin)n + phosphate
-
r
2.4.1.1 glycogen + glucose 1-phosphate not phosphorylase B Musa x paradisiaca glycogen + phosphate
-
r
2.4.1.1 glycogen + glucose 1-phosphate glycogen from oyster Musa x paradisiaca glycogen + phosphate
-
r
2.4.1.1 maltose + alpha-D-glucose 1-phosphate not phosphorylase B Musa x paradisiaca maltotriose + phosphate
-
?
2.4.1.1 starch + glucose 1-phosphate soluble starch Musa x paradisiaca starch + phosphate
-
r
2.4.1.1 [(1->4)-alpha-D-glucosyl]n + phosphate polyglucose primer required Musa x paradisiaca [(1->4)-alpha-D-glucosyl]n-1 + alpha-D-glucose 1-phosphate
-
r

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
2.4.1.1 35
-
phosphorylase B Musa x paradisiaca
2.4.1.1 45
-
phosphorylase A Musa x paradisiaca
2.4.1.1 50
-
phosphorylase C Musa x paradisiaca

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
2.4.1.1 35
-
phosphorylase B, inactivation above Musa x paradisiaca
2.4.1.1 45
-
phosphorylase A or C, 30 min stable Musa x paradisiaca