Isoleucine is an aliphatic amino acid. It is an isomer of leucine.
Like all amino acids, it has an amino group (-NH2
- blue with 2 white balls - at one end, and a carboxylic acid group
(-COOH) - grey, connected to red, and red and white - at the other end.
Between these is the
α- (alpha) carbon
In isoleucine, the 'R' group is an iso butyl group (-C4
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