Hydroxyproline ELISA kits are assays designed to detect hydroxyproline (Hyp), a derivative of the amino acid proline. A major component of collagen, it acts as a marker for bone health and resorption. Hydroxyproline can be found in plants, where it acts as an attachment site for glycan chains during post-translational modification. A deficiency in vitamin C decreases the conversion of proline to hydroxyproline. Visit the supplier page for more information about detection range and reactivity.