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Literature summary for 1.1.1.41 extracted from

  • Lin, M.; Behal, R.H.; Oliver, D.J.
    Characterization of a mutation in the IDH-II subunit of the NAD+-dependent isocitrate dehydrogenase from Arabidopsis thaliana (2004), Plant Sci., 166, 983-988.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
gene idh-II Arabidopsis thaliana

Protein Variants

Protein Variants Comment Organism
additional information construction of a knockout mutant of subunit IDH-II, disruption by dissociation insertion element, mutant strain shows normal growth and development, but reduced enzyme activity in mitochondria compared to the wild-type plants, no altered phenotype of the mutant plants, but slightly reduced growth Arabidopsis thaliana

Localization

Localization Comment Organism GeneOntology No. Textmining
mitochondrion
-
Arabidopsis thaliana 5739
-

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+
-
Arabidopsis thaliana

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
isocitrate + NAD+ Arabidopsis thaliana key enzyme in the Krebs cycle 2-oxoglutarate + CO2 + NADH + H+
-
?
isocitrate + NAD+ Arabidopsis thaliana Landsberg key enzyme in the Krebs cycle 2-oxoglutarate + CO2 + NADH + H+
-
?

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana
-
Landsberg
-
Arabidopsis thaliana Landsberg
-
Landsberg
-

Purification (Commentary)

Purification (Comment) Organism
mitochondrial preparation Arabidopsis thaliana

Source Tissue

Source Tissue Comment Organism Textmining
flower
-
Arabidopsis thaliana
-
leaf
-
Arabidopsis thaliana
-
plant from liquid shaker cultures Arabidopsis thaliana
-
root
-
Arabidopsis thaliana
-
silique young Arabidopsis thaliana
-
stem
-
Arabidopsis thaliana
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.092
-
partially purified enzyme, idh-II mutant Arabidopsis thaliana
0.169
-
partially purified enzyme, wild-type Arabidopsis thaliana

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
isocitrate + NAD+ key enzyme in the Krebs cycle Arabidopsis thaliana 2-oxoglutarate + CO2 + NADH + H+
-
?
isocitrate + NAD+ subunit IDH-I can substitute for a deficient mutant subunit IDH-II Arabidopsis thaliana 2-oxoglutarate + CO2 + NADH + H+
-
?
isocitrate + NAD+ key enzyme in the Krebs cycle Arabidopsis thaliana Landsberg 2-oxoglutarate + CO2 + NADH + H+
-
?
isocitrate + NAD+ subunit IDH-I can substitute for a deficient mutant subunit IDH-II Arabidopsis thaliana Landsberg 2-oxoglutarate + CO2 + NADH + H+
-
?

Subunits

Subunits Comment Organism
More subunit IDH-I can substitute for a deficient mutant subunit IDH-II Arabidopsis thaliana

Synonyms

Synonyms Comment Organism
IDH
-
Arabidopsis thaliana
NAD+-dependent isocitrate dehydrogenase
-
Arabidopsis thaliana

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
assay at Arabidopsis thaliana

Cofactor

Cofactor Comment Organism Structure
NAD+ dependent on Arabidopsis thaliana