Aliphatic amino acid. Uncharged, nonpolar, hydrophobic. Has the same chemical formula as leucine, but with one of the methyl groups moved to another carbon.

Formula: C6H13NO2
Molecular Weight: 131.17
Three-letter code: Ile
One-letter code: I

Isoleucine has the following structure:


    COOH
    |
H2N-C-H
    |
  H-C-CH3
    |
    CH2
    |
    CH3

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