title: Ultracentrifugation as a probe of conformation of unhydroxylated procollagen and collagen.
mesh_terms: D000818:Animals; D002250:Carbon Radioisotopes; D002499:Centrifugation, Density Gradient; D002501:Centrifugation, Zonal; D002642:Chick Embryo; D003094:Collagen; D005347:Fibroblasts / Q000032:analysis; D010434:Pepsin A; D011392:Proline; D011487:Protein Conformation; D011725:Pyridines; D013710:Tendons; D014316:Tritium; D014461:Ultracentrifugation
chemical_list: D002250:Carbon Radioisotopes; D011725:Pyridines; D014316:Tritium; D003094:Collagen; D011392:Proline; D010434:Pepsin A