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Literature summary for 2.7.1.90 extracted from

  • Kombrink, E.; Kruger, N.J.
    Inhibition by metabolic intermediates of pyrophosphate:D-fructose 6-phosphate phosphotransferase from germinating castor bean endosperm (1984), Z. Pflanzenphysiol., 114, 443-453.
No PubMed abstract available
Search for more literature for 2.7.1.90

Activating Compound

Activating Compound Comment Organism Structure
D-fructose 2,6-bisphosphate
-
 Ricinus communis
D-glucose 1-phosphate no activation Ricinus communis
additional information no activation by glucose 6-phosphate, UDPglucose, glucose, D-fructose, sucrose, pyruvate, malate, succinate or glycolate Ricinus communis

Inhibitors

Inhibitors Comment Organism Structure
3-phospho-D-glycerate predominantly a competitive inhibitor Ricinus communis
3-phosphoglycerate
-
 Ricinus communis
ADP
-
 Ricinus communis
AMP weak Ricinus communis
ATP
-
 Ricinus communis
citrate not relieved by Mg2+ Ricinus communis
D-glucose 6-phosphate no inhibition Ricinus communis
malate no inhibition Ricinus communis
additional information no inhibition by glucose, glucose 1-phosphate, sucrose, D-fructose, glycolate, succinate, UDPglucose; no inhibition by pyruvate, malate Ricinus communis
nucleotides
-
 Ricinus communis
phosphate
-
 Ricinus communis
phosphoenolpyruvate
-
 Ricinus communis
Phosphoglycolate
-
 Ricinus communis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
 additional information
-
 Ricinus communis

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ requirement Ricinus communis

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
diphosphate + D-fructose 6-phosphate Ricinus communis
-
 phosphate + D-fructose 1,6-bisphosphate
-
 ?

Organism

Organism UniProt Comment Textmining
Ricinus communis
-
 var. Hale
-

Purification (Commentary)

Purification (Comment) Organism
over 500fold Ricinus communis
partial Ricinus communis

Source Tissue

Source Tissue Comment Organism Textmining
endosperm
-
 Ricinus communis
-
seed germinating Ricinus communis
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
diphosphate + D-fructose 6-phosphate
-
 Ricinus communis phosphate + D-fructose 1,6-bisphosphate
-
 ?
diphosphate + D-fructose 6-phosphate specific for diphosphate as phosphor donor Ricinus communis phosphate + D-fructose 1,6-bisphosphate
-
 ?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
 assay at Ricinus communis

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
0.25
-
 3-phosphoglycerate pH 7.5 Ricinus communis