Hydroxylysine is an amino acid, C₆H₁₄N₂O₃. It is most widely known as a component of collagen. A standard amino acid with the R' group consisting of an amino terminated butyl hydrocarbon chain, with a hydroxyl group on the carbon atom before the amino group. See also lysine which lacks the hydroxyl group of hydrolysine.

Structure is: NH2 - CH2 - CH(OH) - CH2 - CH2 - CH(NH2)COOH

The number of hydrogens vary depending on the ionization state of the molecule's carboxyl and amino groups.

External link

• More in depth information about the biological context of hydroxylysine

Amino acids