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Literature summary for 2.7.1.40 extracted from

  • Storey, K.
    Kinetic and regulatory properties of pyruvate kinase isozymes from flight muscle and fat body of the cockroach, Periplaneta americana (1985), J. Comp. Physiol. B, 155, 339-345.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
D-fructose 1,6-diphosphate activation Periplaneta americana
D-fructose 1,6-diphosphate not Periplaneta americana
D-fructose 1,6-diphosphate strong activation, fat body enzyme Periplaneta americana

Inhibitors

Inhibitors Comment Organism Structure
arginine phosphate flight muscle isozyme: weak; fructose 1,6-diphosphate restores Periplaneta americana
citrate fat body isozyme; weak, flight muscle isozyme Periplaneta americana
L-alanine weak; weak, flight muscle isozyme Periplaneta americana

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.04 0.063 phosphoenolpyruvate
-
Periplaneta americana
0.2 0.35 ADP
-
Periplaneta americana

Metals/Ions

Metals/Ions Comment Organism Structure
K+ activation Periplaneta americana
Mg2+ Km-value: 0.8 mM Periplaneta americana
Mn2+ Km-value: 0.6 mM, flight muscle isozyme Periplaneta americana

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
235000
-
-
Periplaneta americana

Organism

Organism UniProt Comment Textmining
Periplaneta americana
-
cockroach
-

Purification (Commentary)

Purification (Comment) Organism
2 isozymes, in flight muscle and fat body Periplaneta americana

Source Tissue

Source Tissue Comment Organism Textmining
fat body
-
Periplaneta americana
-
muscle flight muscle Periplaneta americana
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ADP + phosphoenolpyruvate
-
Periplaneta americana ATP + pyruvate
-
?

pI Value

Organism Comment pI Value Maximum pI Value
Periplaneta americana flight muscle isozyme
-
5.75
Periplaneta americana fat body isozyme
-
6.15