IUBMB Enzyme Nomenclature


Accepted name: 2-methylisocitrate dehydratase

Reaction: (2S,3R)-3-hydroxybutane-1,2,3-tricarboxylate = (Z)-but-2-ene-1,2,3-tricarboxylate + H2O

Glossary: cis-2-methylaconitate = (Z)-but-2-ene-1,2,3-tricarboxylate
(2S,3R)-2-methylisocitrate = (2S,3R)-3-hydroxybutane-1,2,3-tricarboxylate = threo-Ds-2-methylisocitrate

Other name(s): (2S,3R)-3-hydroxybutane-1,2,3-tricarboxylate hydro-lyase

Systematic name: (2S,3R)-3-hydroxybutane-1,2,3-tricarboxylate hydro-lyase [(Z)-but-2-ene-1,2,3-tricarboxylate-forming]

Comments: The enzyme from the fungus Yarrowia lipolytica (Saccharomycopsis) does not act on isocitrate.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 170780-51-5


1. Aoki, H., Uchiyama, H., Umetsu, H., Tabuchi, T. Isolation of 2-methylisocitrate dehydratase, a new enzyme serving in the methylcitric acid cycle for propionate metabolism, from Yarrowia lipolytica. Biosci. Biotechnol. Biochem. 59 (1995) 1825-1828

2. Tabuchi, T., Umetsu, H., Aoki, H., Uchiyama, H. Characteristics of 2-methylisocitrate dehydratase, isolated from Yarrowia lipolytica, in comparison to aconitase. Biosci. Biotechnol. Biochem. 59 (1995) 2013-2017.

[EC created 1999]

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