Valine is V. This model of the amino acid valine can be strung on a necklace or attached to an earring. Like all of our other amino acid models, it is engineered with a small hole to easily fasten the amino acids together, like beads on a string.
Along with leucine and isoleucine, valine is a branched-chain amino acid. It is named after the plant valerian. In sickle-cell disease, valine substitutes for the hydrophilic amino acid glutamic acid in hemoglobin. Because valine is hydrophobic, the hemoglobin does not fold correctly.