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    • 5. 发明公开
    • Method for the enymatic production of 3-hydroxy-3-methylbutyric acid from acetone and acetyl-CoA
    • Verfahren zur酶学家Herstellung von 3-Hydroxy-3-Methylbuttersäureaus Aceton und Acetyl-CoA
    • EP2295593A1
    • 2011-03-16
    • EP09170312.4
    • 2009-09-15
    • Marliere, Philippe
    • Marliere, Philippe
    • C12P7/52C12N15/52C12N9/10C12N9/88C12N1/21
    • C12P7/52C12N9/1025C12N9/88C12P7/42C12Y203/0301C12Y401/03004Y02P20/52
    • Described is a method for the production of 3-hydroxy-3-methylbutyric acid (also referred to as beta-hydroxyisovalerate or HIV) from acetone and a compound which provides an activated acetyl group comprising the enzymatic conversion of acetone and a compound which provides an activated acetyl group into 3-hydroxy-3-methylbutyric acid. The conversion makes use of an enzyme which is capable of catalyzing the formation of a covalent bond between the carbon atom of the oxo (i.e. the C=O) group of acetone and the methyl group of the compound which provides an activated acetyl group. Preferably, the enzyme employed in the process is an enzyme with the activity of a HMG CoA synthase (EC 2.3.3.10) and/or a PksG protein and/or an enzyme with the activity of a C-C bond cleavage/condensation lyase, such as a HMG CoA lyase (EC 4.1.3.4). Also described are organisms which are able to produce 3-hydroxy-3-methylbutyric acid from acetone, a compound which provides an activated acetyl group, the use of the above-mentioned enzymes and organisms for the production of 3-hydroxy-3-methylbutyric acid as well as the use of acetone for the production of 3-hydroxy-3-methylbutyric acid.
    • 描述了一种从丙酮生产3-羟基-3-甲基丁酸(也称为β-羟基异戊酸酯或HIV)的方法和提供活化乙酰基的化合物,其包括丙酮的酶转化和提供 活化乙酰基转化为3-羟基-3-甲基丁酸。 该转化使用能够催化丙酮的氧代(即C = O)基团的碳原子与提供活化的乙酰基的化合物的甲基之间形成共价键的酶。 优选地,该方法中使用的酶是具有HMG CoA合成酶(EC 2.3.3.10)和/或PksG蛋白和/或具有CC键切割/冷凝裂合酶活性的酶的酶,例如 HMG CoA裂解酶(EC 4.1.3.4)。 还描述了能够从丙酮产生3-羟基-3-甲基丁酸的生物体,提供活化乙酰基的化合物,使用上述酶和生物体来生产3-羟基-3-甲基丁酸 酸以及使用丙酮生产3-羟基-3-甲基丁酸。