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Literature summary for 3.1.3.60 extracted from

  • Malhotra, O.P.; Kayastha, A.M.
    Isolation and characterization of phosphoenolpyruvate phosphatase from germinating mung beans (Vigna radiata) (1990), Plant Physiol., 93, 194-200.
    View publication on PubMedView publication on EuropePMC

Inhibitors

Inhibitors Comment Organism Structure
3-phosphoglycerate competitive Vigna radiata
ATP competitive Vigna radiata
citrate competitive Vigna radiata
Cu2+ competitive towards Mg2+ Vigna radiata
Hg2+ competitive towards Mg2+ Vigna radiata
Ni2+ competitive towards Mg2+ Vigna radiata
oxalate competitive Vigna radiata
succinate competitive Vigna radiata
Zn2+ competitive towards Mg2+ Vigna radiata

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.14
-
phosphoenolpyruvate 30°C, pH 8.5 Vigna radiata

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ required Vigna radiata

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
60000
-
SDS-PAGE Vigna radiata
240000
-
gel filtration Vigna radiata

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
phosphoenolpyruvate + H2O Vigna radiata
-
pyruvate + phosphate
-
?

Organism

Organism UniProt Comment Textmining
Vigna radiata
-
mung bean
-

Purification (Commentary)

Purification (Comment) Organism
-
Vigna radiata

Source Tissue

Source Tissue Comment Organism Textmining
seed geminating bean Vigna radiata
-
seed highest activity at 36 h of germination Vigna radiata
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.05
-
Vmax, purified enzyme, 30°C, pH 8.5 Vigna radiata

Storage Stability

Storage Stability Organism
-10°C, purified enzyme, 50 days, 50% loss of activity Vigna radiata

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ADP + H2O poor substrate Vigna radiata ?
-
?
ATP + H2O poor substrate Vigna radiata ?
-
?
diphosphate + H2O poor substrate Vigna radiata 2 phosphate
-
?
GDP + H2O poor substrate Vigna radiata ?
-
?
IDP + H2O poor substrate Vigna radiata ?
-
?
phosphoenolpyruvate + H2O
-
Vigna radiata pyruvate + phosphate
-
?
phosphoenolpyruvate + H2O highly specific Vigna radiata pyruvate + phosphate
-
?
UDP + H2O poor substrate Vigna radiata ?
-
?

Subunits

Subunits Comment Organism
tetramer 4 * 60000, gel filtration, SDS-PAGE Vigna radiata

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
20 50
-
Vigna radiata

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
half-life: 6.8 min, pH 6.5, 2.4 min, pH 7.5, 1.8 min, pH 8.6 Vigna radiata

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5
-
-
Vigna radiata

pH Range

pH Minimum pH Maximum Comment Organism
6.5 10
-
Vigna radiata

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
0.023
-
Zn2+ competitive towards Mg2+, 30°C, pH 8.5 Vigna radiata
0.22
-
Cu2+ competitive towards Mg2+, 30°C, pH 8.5 Vigna radiata
3
-
oxalate competitive, 30°C, pH 8.5 Vigna radiata
3.3
-
3-phosphoglycerate competitive, 30°C, pH 8.5 Vigna radiata
4.5
-
citrate competitive, 30°C, pH 8.5 Vigna radiata
5
-
ATP competitive, 30°C, pH 8.5 Vigna radiata
6.3
-
succinate competitive, 30°C, pH 8.5 Vigna radiata