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  • Title: Embryonic chick cartilage collagens. Differences in the low-Mr species present in sternal cartilage and tibiotarsal articular cartilage.
    Author: Kielty CM, Hulmes DJ, Schor SL, Grant ME.
    Journal: FEBS Lett; 1984 Apr 24; 169(2):179-84. PubMed ID: 6425083.
    Abstract:
    The collagenous polypeptides present in embryonic chick sternal and tibiotarsal cartilages have been solubilised by digestion with pepsin and separated by salt fractionation. Type II collagen, 1 alpha 2 alpha 3 alpha collagen, and two polypeptides (apparent molecular mass 150 and 42 kDa), which were reducible to a number of smaller peptides, were extracted from both tissues. However, also present in the peptic digests of tibiotarsal cartilages was a major non-reducible highly-soluble polypeptide of 45 kDa. This short-chain collagen is apparently identical to the pepsinized product of G collagen (Mr 59 000), a major low-Mr procollagen-like species previously detected in chick chondrocyte cultures.
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