title: A method for assaying the activity of the endopeptidase which excises the nonhelical carboxyterminal extensions from type I procollagen.
mesh_terms: D002460:Cell Line; D010450:Endopeptidases / Q000032:analysis* / Q000378:metabolism; D007700:Kinetics; D010446:Peptide Fragments / Q000032:analysis; D011347:Procollagen / Q000378:metabolism*; D012995:Solubility
chemical_list: D010446:Peptide Fragments; D011347:Procollagen; D010450:Endopeptidases