Definition of isoleucine in English:


Syllabification: i·so·leu·cine
Pronunciation: /ˌīsəˈlo͞osēn, -sin


  • A hydrophobic amino acid that is a constituent of most proteins. It is an essential nutrient in the diet of vertebrates.
    • Chemical formula: CH3CH2CH(CH3)CH(NH2)COOH
    More example sentences
    • Key essential amino acids are valine, leucine, isoleucine, tryptophan and methionine.
    • Contents of alanine, valine, isoleucine, and leucine were increased by anaerobic conditions.
    • ALS is a mitochondrial enzyme involved in the biosynthesis of the branched-chain amino acids isoleucine and valine.

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