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Literature summary extracted from

  • Nader, W.; Becker, J.U.
    1,4-alpha-Glucan phosphorylase from the slime mold Physarum polycephalum. Purification, physico-chemical and kinetic properties (1979), Eur. J. Biochem., 102, 345-355.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
2.4.1.1 5'-AMP activation Physarum polycephalum
2.4.1.1 5'-AMP slight activation Physarum polycephalum

Inhibitors

EC Number Inhibitors Comment Organism Structure
2.4.1.1 D-glucose weak Physarum polycephalum
2.4.1.1 fructose 1-phosphate
-
Physarum polycephalum
2.4.1.1 fructose 6-phosphate
-
Physarum polycephalum
2.4.1.1 GDPglucose kinetics Physarum polycephalum
2.4.1.1 glucose 1-phosphate completely reversible by 5'-AMP; kinetics Physarum polycephalum
2.4.1.1 glucose 6-phosphate
-
Physarum polycephalum

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 data Physarum polycephalum
2.4.1.1 additional information
-
additional information 1.26 mg/ml, glycogen Physarum polycephalum

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
2.4.1.1 93000
-
2 * 93000, SDS-PAGE Physarum polycephalum
2.4.1.1 172000
-
gel filtration Physarum polycephalum

Organism

EC Number Organism UniProt Comment Textmining
2.4.1.1 Physarum polycephalum
-
M3c
-
2.4.1.1 Physarum polycephalum M3c
-
M3c
-

Purification (Commentary)

EC Number Purification (Comment) Organism
2.4.1.1 Streptomycin, ammonium sulfate, DEAE-cellulose, aminobutyl-Sepharose, hydroxyapatite Physarum polycephalum

Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.4.1.1 plasmodium macroplasmodium Physarum polycephalum
-

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 4.2
-
-
Physarum polycephalum

Storage Stability

EC Number Storage Stability Organism
2.4.1.1 6°C, 3 months Physarum polycephalum
2.4.1.1 bovine serum albumin prevents surface inactivation during storage Physarum polycephalum

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.4.1.1 glycogen + glucose 1-phosphate glycogen from oyster Physarum polycephalum glycogen + phosphate
-
r
2.4.1.1 glycogen + glucose 1-phosphate glycogen from Streptococcus salivarius Physarum polycephalum glycogen + phosphate
-
r
2.4.1.1 glycogen + glucose 1-phosphate glycogen from oyster Physarum polycephalum M3c glycogen + phosphate
-
r
2.4.1.1 glycogen + glucose 1-phosphate glycogen from Streptococcus salivarius Physarum polycephalum M3c glycogen + phosphate
-
r
2.4.1.1 [(1->4)-alpha-D-glucosyl]n + phosphate
-
Physarum polycephalum [(1->4)-alpha-D-glucosyl]n-1 + alpha-D-glucose 1-phosphate
-
r
2.4.1.1 [(1->4)-alpha-D-glucosyl]n + phosphate
-
Physarum polycephalum M3c [(1->4)-alpha-D-glucosyl]n-1 + alpha-D-glucose 1-phosphate
-
r

Subunits

EC Number Subunits Comment Organism
2.4.1.1 dimer 2 * 93000, SDS-PAGE Physarum polycephalum

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
2.4.1.1 6 7.5 broad Physarum polycephalum

pH Range

EC Number pH Minimum pH Maximum Comment Organism
2.4.1.1 5.4 8.2 approx. half-maximal activity at pH 5.4 and pH 8.2 Physarum polycephalum

Cofactor

EC Number Cofactor Comment Organism Structure
2.4.1.1 pyridoxal 5'-phosphate requirement Physarum polycephalum
2.4.1.1 pyridoxal 5'-phosphate 1 mol/mol subunit Physarum polycephalum

Ki Value [mM]

EC Number Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
2.4.1.1 0.03
-
GDP-glucose
-
Physarum polycephalum
2.4.1.1 0.1
-
glucose 1-phosphate
-
Physarum polycephalum