l-hydroxylysine

L-hydroxylysine dihydrochloride , is formed by posttranslational hydroxylation of some lysine residues. It is an amino acid, is exclusive to collagen protein.

Galactosylhydroxylysine residues present in bone type I collagen are terminal degradation products of the bone matrix that are released during bone resorption and excreted in the urine.

Glucosylgalactosylhydroxylysine is a bone formation and bone resorption marker that is related to bone turnover processes during growth and development as well as metabolic bone diseases.

Galactosylhydroxylysine hydrochloride, 一种羟基赖氨酸经糖基化转换后生成的骨胶原蛋白成分，该化合物在骨吸收过程中释放，其浓度在代谢性骨丢失疾病中会上升。

DL-5-Hydroxylysine hydrochloride (5-hydroxylysine hydrochloride) 是内源性代谢产物的一种。