title: Disappearance of tyrosine residues in collagen with age. Suggestion of a possible reaction mechanism.
mesh_terms: D000125:Achilles Tendon; D000375:Aging; D000596:Amino Acids / Q000032:analysis; D000814:Aniline Compounds / Q000378:metabolism; D000818:Animals; D000840:Anisoles / Q000378:metabolism; D001713:Biphenyl Compounds / Q000378:metabolism; D002417:Cattle; D003094:Collagen / Q000032:analysis*; D004591:Electrophoresis, Polyacrylamide Gel; D006868:Hydrolysis; D009566:Nitrates / Q000378:metabolism; D009578:Nitrobenzenes / Q000378:metabolism; D010084:Oxidation-Reduction; D011402:Pronase / Q000378:metabolism; D051381:Rats; D012995:Solubility; D013050:Spectrometry, Fluorescence; D013055:Spectrophotometry, Infrared; D013623:Tail; D013696:Temperature; D013710:Tendons; D014443:Tyrosine / Q000032:analysis* / Q000378:metabolism
chemical_list: D000596:Amino Acids; D000814:Aniline Compounds; D000840:Anisoles; D001713:Biphenyl Compounds; D009566:Nitrates; D009578:Nitrobenzenes; D014443:Tyrosine; D003094:Collagen; D011402:Pronase