Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary for 2.7.1.40 extracted from

  • Turner, W.L.; Plaxton, W.C.
    Purification and characterization of cytosolic pyruvate kinase from banana fruit (2000), Biochem. J., 352, 875-882.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
L-glutamate
-
Musa cavendishii
MgATP2-
-
Musa cavendishii

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.098
-
phosphoenolpyruvate hyperbolic saturation kinetics, pH 6.9, 25°C Musa cavendishii
0.12
-
ADP hyperbolic saturation kinetics, pH 6.9, 25°C Musa cavendishii

Metals/Ions

Metals/Ions Comment Organism Structure
K+ requirement Musa cavendishii
K+ Km-value 0.91 mM, hyperbolic saturation kinetics Musa cavendishii
Mg2+ Km-value 0.27 mM, hyperbolic saturation kinetics Musa cavendishii
Mg2+ fulfills absolute requirement for divalent cation Musa cavendishii
additional information absolute requirement for a bivalent and a monovalent cation with Mg2+ and K+ fulfilling this Musa cavendishii

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
57000
-
4 * 57000, SDS-PAGE Musa cavendishii
240000
-
gel filtration Musa cavendishii

Organism

Organism UniProt Comment Textmining
Musa cavendishii
-
banana
-

Purification (Commentary)

Purification (Comment) Organism
-
Musa cavendishii

Reaction

Reaction Comment Organism Reaction ID
ATP + pyruvate = ADP + phosphoenolpyruvate model for allosteric regulation Musa cavendishii

Source Tissue

Source Tissue Comment Organism Textmining
fruit
-
Musa cavendishii
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
59
-
pH 6.9, 25°C Musa cavendishii

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ADP + phosphoenolpyruvate ADP preferred substrate, UDP, IDP, GDP and CDP may also be used with lower effectivity Musa cavendishii ATP + pyruvate
-
?

Subunits

Subunits Comment Organism
tetramer 4 * 57000, SDS-PAGE Musa cavendishii

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.9
-
-
Musa cavendishii

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
3.7
-
L-glutamate cosubstrate MgADP-, pH 7.5, 25°C Musa cavendishii
3.9
-
MgATP2- cosubstrate MgADP-, pH 6.9, 25°C Musa cavendishii
4
-
MgATP2- cosubstrate MgADP-, pH 7.5, 25°C Musa cavendishii
4.4
-
L-glutamate cosubstrate phosphoenolpyruvate, pH 7.5, 25°C Musa cavendishii
9.6
-
MgATP2- cosubstrate phosphoenolpyruvate, pH 6.9, 25°C Musa cavendishii
10
-
MgATP2- cosubstrate phosphoenolpyruvate, pH 7.5, 25°C Musa cavendishii
13.6
-
L-glutamate cosubstrate phosphoenolpyruvate, pH 6.9, 25°C Musa cavendishii
19.2
-
L-glutamate cosubstrate MgADP-, pH 6.9, 25°C Musa cavendishii