title: Collagen crosslinking: isolation of hydroxyaldol-histidine, a naturally-occurring crosslink.
mesh_terms: D000818:Animals; D001665:Binding Sites; D002417:Cattle; D003094:Collagen / Q000032:analysis; D006639:Histidine / Q000031:analogs & derivatives* / Q000032:analysis; D046911:Macromolecular Substances; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D011485:Protein Binding; D011487:Protein Conformation; D012867:Skin / Q000032:analysis
chemical_list: D046911:Macromolecular Substances; D006639:Histidine; D003094:Collagen