2-(omega-methylthio)alkylmalate dehydratase EC#: 4.2.1.170; ChemWhat Code: 1382488
| Product Name | 2-(omega-methylthio)alkylmalate dehydratase |
| Example Structure |  |
| Synonyms | IPMI, isopropylmalate dehydratase, isopropylmalate isomerase |
| EC Number | 4.2.1.170 |
| CAS Registry Number | |
| Comments | The enzyme, characterized from the plant?Arabidopsis thaliana, is involved in the?L-methionine side-chain elongation pathway, forming substrates for the biosynthesis of aliphatic glucosinolates. By catalysing a dehydration of a 2-(¦Ø-methylsulfanyl)alkylmaleate, followed by a hydration at a different position, the enzyme achieves the isomerization of its substrates. The enzyme is a heterodimer comprising a large and a small subunits. The large subunit can also bind to an alternative small subunit, forming EC?4.2.1.33, 3-isopropylmalate dehydratase, which participates in?L-leucine biosynthesis. |
| Cofactor | |
| History | |
| Reactions | (1) A 2-(omega-methylthio)alkylmalate = a 2-(omega- methylthio)alkylmaleate + H(2)O. (2) A 3-(omega-methylthio)alkylmalate = a 2-(omega- methylthio)alkylmaleate + H(2)O. |
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