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Literature summary for 4.1.3.1 extracted from

  • Giachetti, E.G.; Pinzauti, G.; Bonaccorsi, R.; Vincenzini, M.T.; Vanni, P.
    Isocitrate lyase from higher plants (1987), Phytochemistry, 26, 2439-2446.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
additional information no evidence that isocitrate lyase contains coenzyme Lupinus sp.
additional information no evidence that isocitrate lyase contains coenzyme Ricinus communis
additional information no evidence that isocitrate lyase contains coenzyme Cucumis sativus
additional information no evidence that isocitrate lyase contains coenzyme Helianthus annuus
additional information no evidence that isocitrate lyase contains coenzyme Linum usitatissimum
additional information no evidence that isocitrate lyase contains coenzyme Citrullus lanatus subsp. vulgaris
additional information no evidence that isocitrate lyase contains coenzyme Pinus densiflora
additional information no evidence that isocitrate lyase contains coenzyme Pinus pinea

General Stability

General Stability Organism
most isocitrases very unstable, bacterial enzyme more stable than plant enzyme Helianthus annuus

Inhibitors

Inhibitors Comment Organism Structure
citrate
-
Helianthus annuus
citrate
-
Ricinus communis
glycolate
-
Helianthus annuus
glycolate
-
Lupinus sp.
glycolate
-
Pinus pinea
glyoxylate
-
Linum usitatissimum
glyoxylate
-
Lupinus sp.
glyoxylate
-
Pinus pinea
malate
-
Lupinus sp.
malate
-
Ricinus communis
Maleate
-
Pinus densiflora
Maleate
-
Ricinus communis
malonate
-
Citrullus lanatus subsp. vulgaris
malonate
-
Linum usitatissimum
malonate
-
Lupinus sp.
malonate
-
Ricinus communis
methylenesuccinate
-
Citrullus lanatus subsp. vulgaris
methylenesuccinate
-
Linum usitatissimum
methylenesuccinate
-
Lupinus sp.
methylenesuccinate
-
Pinus densiflora
methylenesuccinate
-
Pinus pinea
oxalate
-
Citrullus lanatus subsp. vulgaris
oxalate
-
Helianthus annuus
oxalate
-
Lupinus sp.
oxalate
-
Pinus densiflora
oxalate
-
Pinus pinea
phosphoenolpyruvate
-
Linum usitatissimum
phosphoenolpyruvate
-
Lupinus sp.
phosphoenolpyruvate
-
Pinus densiflora
succinate
-
Helianthus annuus
succinate
-
Linum usitatissimum
succinate
-
Lupinus sp.
succinate
-
Pinus densiflora
succinate
-
Pinus pinea
succinate
-
Ricinus communis
Tartrate
-
Citrullus lanatus subsp. vulgaris
Tartrate
-
Linum usitatissimum
Tartrate
-
Lupinus sp.
Tartrate
-
Pinus densiflora

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.032
-
isocitrate phosphate, pH 6.0 Helianthus annuus
0.033
-
Ds-isocitrate HEPES, pH 7.0 Pinus pinea
0.035
-
isocitrate imidazole, pH 7.0 Lupinus sp.
0.039
-
isocitrate MOPS, pH 6.8 Cucumis sativus
0.1
-
threo-Ds-isocitrate Hepes, pH 7.4 Cucumis sativus
0.11
-
isocitrate TRA, pH 7.0 Pinus pinea
0.25
-
isocitrate MOPS, pH 7.5 Citrullus lanatus subsp. vulgaris
0.29
-
isocitrate phosphate, pH 7.5 Linum usitatissimum
0.3
-
isocitrate phosphate, pH 7.0 Ricinus communis
0.66
-
isocitrate Tris, pH 7.6 Pinus densiflora
0.67
-
isocitrate phosphate, pH 7.5 Helianthus annuus
1
-
isocitrate phosphate, pH 6.8 Ricinus communis

Localization

Localization Comment Organism GeneOntology No. Textmining
glyoxysome matrix Cucumis sativus 9514
-
glyoxysome matrix Helianthus annuus 9514
-

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+
-
Pinus densiflora
Mg2+ maximal activity at 5-6 mM Cucumis sativus
Mg2+ maximal activity at 3.7 mM Linum usitatissimum
Mg2+ maximal activity at 5 mM Lupinus sp.
Mg2+ maximal activity at 6 mM Pinus pinea
Mg2+ increase of activity Lupinus sp.
Mg2+ increase of activity Ricinus communis
Mg2+ increase of activity Helianthus annuus
Mg2+ increase of activity Linum usitatissimum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
28500
-
4 * 28500 Helianthus annuus
66000
-
4 * 66000, SDS-PAGE Lupinus sp.
66000
-
4 * 66000, SDS-PAGE Pinus pinea
114000
-
-
Helianthus annuus
260000
-
-
Lupinus sp.

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
isocitrate Lupinus sp. glyoxylate cycle ?
-
?
isocitrate Ricinus communis glyoxylate cycle ?
-
?
isocitrate Cucumis sativus glyoxylate cycle ?
-
?
isocitrate Helianthus annuus glyoxylate cycle ?
-
?
isocitrate Linum usitatissimum glyoxylate cycle ?
-
?
isocitrate Citrullus lanatus subsp. vulgaris glyoxylate cycle ?
-
?
isocitrate Pinus densiflora glyoxylate cycle ?
-
?
isocitrate Pinus pinea glyoxylate cycle ?
-
?

Organism

Organism UniProt Comment Textmining
Citrullus lanatus subsp. vulgaris
-
-
-
Cucumis sativus
-
cucumber
-
Helianthus annuus
-
sunflower
-
Linum usitatissimum
-
-
-
Lupinus sp.
-
-
-
Pinus densiflora
-
-
-
Pinus pinea
-
-
-
Ricinus communis
-
castor bean
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(2R,3S)-isocitrate
-
Cucumis sativus succinate + glyoxylate
-
?
isocitrate
-
Lupinus sp. succinate + glyoxylate
-
?
isocitrate
-
Ricinus communis succinate + glyoxylate
-
?
isocitrate
-
Cucumis sativus succinate + glyoxylate
-
?
isocitrate
-
Helianthus annuus succinate + glyoxylate
-
?
isocitrate
-
Linum usitatissimum succinate + glyoxylate
-
?
isocitrate
-
Citrullus lanatus subsp. vulgaris succinate + glyoxylate
-
?
isocitrate
-
Pinus densiflora succinate + glyoxylate
-
?
isocitrate
-
Pinus pinea succinate + glyoxylate
-
?
isocitrate glyoxylate cycle Lupinus sp. ?
-
?
isocitrate glyoxylate cycle Ricinus communis ?
-
?
isocitrate glyoxylate cycle Cucumis sativus ?
-
?
isocitrate glyoxylate cycle Helianthus annuus ?
-
?
isocitrate glyoxylate cycle Linum usitatissimum ?
-
?
isocitrate glyoxylate cycle Citrullus lanatus subsp. vulgaris ?
-
?
isocitrate glyoxylate cycle Pinus densiflora ?
-
?
isocitrate glyoxylate cycle Pinus pinea ?
-
?

Subunits

Subunits Comment Organism
tetramer
-
Ricinus communis
tetramer
-
Cucumis sativus
tetramer
-
Citrullus lanatus subsp. vulgaris
tetramer 4 * 28500 Helianthus annuus
tetramer 4 * 66000, SDS-PAGE Lupinus sp.
tetramer 4 * 66000, SDS-PAGE Pinus pinea

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.8
-
-
Lupinus sp.
7.3 7.5
-
Pinus pinea
7.35 7.6
-
Helianthus annuus