Collagen Synthesis in vitro by Embryonic Spinal Cord Epithelium

Science  19 Jan 1973:
Vol. 179, Issue 4070, pp. 295-297
DOI: 10.1126/science.179.4070.295


Isolated spinal cords from chick embryos (stages 12 to 15) were incubated in vitro with radioactive proline. The proteins synthesized were fractionated by coprecipitation with added carrier collagen, followed by molecularsieve and ion-exchange chromatography. A portion of the isotopically labeled proteins were found to be collagen molecules consisting only of α1 chains.