Hydroxylysine kinase (HYKK) phosphorylates 5-hydroxylysine (5HLYS), derived from food and collagen breakdown, to 5-phosphonooxy-L-lysine (5PHL) using GTP as the preferential phosphate donor (Veiga-da-Cunha et al. 2012).
Veiga-da-Cunha, M, Hadi, F, Balligand, T, Stroobant, V, Van Schaftingen, E
© 2021 Reactome