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Literature summary for 2.7.7.27 extracted from

  • Gomez Casati, D.F.; Aon, M.A.; Iglesias, A.A.
    Kinetic and structural analysis of the ultrasensitive behaviour of cyanobacterial ADP-glucose pyrophosphorylase (2000), Biochem. J., 350, 139-147.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
3-phosphoglycerate the polyethylene glycerol induced molecular crowding increases the sensitivity of enzyme to the cross-talk between 3-phosphoglycerate and phosphate, the ultrasensitive behaviour is correlated with intramolecular conformational changes induced in the tertiary structure of the homotetrameric enzyme Anabaena sp.

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli AC70R1-504 Anabaena sp.

Inhibitors

Inhibitors Comment Organism Structure
phosphate the inhibitory action of phosphate interferes with the activating role exerted by 3-phosphoglycerate, a 2fold higher positive cooperation is induced by allosteric inhibitor in crowded medium in comparison to the aqueous condition Anabaena sp.

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information comparison of Km of alpha-D-glucose 1-phosphate at different ATP concentrations, at two levels of 3-phosphoglycerate and in aqueous or by polyethylenglycol crowded medium, comparison of Km of ATP at different alpha-D-glucose 1-phosphate concentrations, at two levels of 3-phosphoglycerate and in aqueous or by polyethylenglycol crowded medium Anabaena sp.

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
200000
-
gel filtration Anabaena sp.

Organism

Organism UniProt Comment Textmining
Anabaena sp.
-
PCC 7120, cyanobacterium
-

Purification (Commentary)

Purification (Comment) Organism
recombinant enzyme Anabaena sp.

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + alpha-D-glucose 1-phosphate
-
Anabaena sp. diphosphate + ADP-glucose
-
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