Purification of (14C) protocollagen and its hydroxylation by prolyl-hydroxylase.

Amino Acids/analysis Ammonium Sulfate Animals Carbon Isotopes Chick Embryo Chymotrypsin Collagen/analysis,isolation & purification Drug Stability Hydroxylation Mixed Function Oxygenases Molecular Weight Pepsin A Procollagen-Proline Dioxygenase/antagonists & inhibitors Proline Protein Conformation Protein Denaturation Protein Precursors/analysis,isolation & purification Pyridines Temperature Tendons/analysis,embryology Ultracentrifugation

Amino Acids Carbon Isotopes Protein Precursors Pyridines Collagen Proline Mixed Function Oxygenases Procollagen-Proline Dioxygenase Chymotrypsin Pepsin A Ammonium Sulfate