, Volume 34, Issue 4, pp 462–463 | Cite as

Cell surface proteolytic activity of suspended embryonic cells isolated with and without proteolytic enzyme

  • L. L. Wiseman
  • W. R. Hammond


Although trypsin-disaggregated embryonic chick neural retina cells are incapable while EDTA-disaggregated cells are capable of immediate aggregation in culture, cells from both populations exhibit equally negligible levels of cell surface proteolytic activity as measured by substrate assay. The trypsin-induced lag does not appear, therefore, to depend upon adsorbed enzyme.


Enzyme Cell Surface Retina Proteolytic Activity Proteolytic Enzyme 
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  1. 1.
    M. S. Steinberg, P. B. Armstrong and R. E. Granger, J. Membrane Biol.13, 97 (1973).Google Scholar
  2. 2.
    L. L. Wiseman and W. R. Hammond, J. exp. Zool.197, 429 (1976).PubMedGoogle Scholar
  3. 3.
    N. Kobamoto, G. Lofroth, P. Camp, G. Van Amburg and L. Augenstein, Biochem. biophys. Res. Commun.24, 622 (1966).Google Scholar
  4. 4.
    G. Poste, Exp. Cell Res.65, 359 (1971).PubMedGoogle Scholar
  5. 5.
    L. L. Wiseman, M. S. Steinberg and H. M. Phillips, Devl Biol.28, 498 (1972).Google Scholar
  6. 6.
    C. R. Hebb and M. Chu, Exp. Cell Res.20, 453 (1960).PubMedGoogle Scholar
  7. 7.
    C. Levinson and J. W. Green, Exp. Cell Res.39, 309 (1965).PubMedGoogle Scholar

Copyright information

© Birkhäuser Verlag 1978

Authors and Affiliations

  • L. L. Wiseman
    • 1
  • W. R. Hammond
    • 1
  1. 1.Department of BiologyThe College of William and MaryWilliamsburgUSA

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