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Literature summary for 2.7.1.40 extracted from

  • Chrispeels, M.J.; Gaede, G.
    Purification and characterization of pyruvate kinase from the foot muscle of the cockle, Cardium tuberculatum (1985), Comp. Biochem. Physiol. B, 82, 162-172.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
D-fructose 1,6-diphosphate activation Acanthocardia tuberculata

Inhibitors

Inhibitors Comment Organism Structure
citrate
-
Acanthocardia tuberculata
L-alanine phosphoenolpyruvate- and Mg2+-dependent Acanthocardia tuberculata
L-lactate
-
Acanthocardia tuberculata

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.049 0.1 IDP cosubstrate phosphoenolpyruvate Acanthocardia tuberculata
0.2 0.35 ADP
-
Acanthocardia tuberculata

Metals/Ions

Metals/Ions Comment Organism Structure
K+ requirement Acanthocardia tuberculata
Mn2+ can partially replace Mg2+ Acanthocardia tuberculata
Mn2+ best activator Acanthocardia tuberculata
monovalent cation requirement Acanthocardia tuberculata
NH4+ requirement Acanthocardia tuberculata

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
70000
-
4 * 70000 Acanthocardia tuberculata
282000
-
gel filtration Acanthocardia tuberculata

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
ADP + phosphoenolpyruvate Acanthocardia tuberculata allosteric enzyme ATP + pyruvate
-
?

Organism

Organism UniProt Comment Textmining
Acanthocardia tuberculata
-
cockle
-

Purification (Commentary)

Purification (Comment) Organism
-
Acanthocardia tuberculata

Source Tissue

Source Tissue Comment Organism Textmining
foot
-
Acanthocardia tuberculata
-
muscle foot muscle Acanthocardia tuberculata
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Acanthocardia tuberculata

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ADP + phosphoenolpyruvate positive cooperativity for phosphoenolpyruvate Acanthocardia tuberculata ATP + pyruvate
-
?
ADP + phosphoenolpyruvate allosteric enzyme Acanthocardia tuberculata ATP + pyruvate
-
?
GDP + phosphoenolpyruvate less effective than ADP Acanthocardia tuberculata GTP + pyruvate
-
?
IDP + phosphoenolpyruvate less effective than ADP Acanthocardia tuberculata ITP + pyruvate
-
?

Subunits

Subunits Comment Organism
tetramer 4 * 70000 Acanthocardia tuberculata