Summary
We have been unable to confirm the recent report that kaolinite catalyzes the polymerization of aqueousd- andl-aspartic acid at different rates. In experiments wheredl-Asp was used, no induced optical rotation was found in the reaction solution. No evidence for polymer (or other product) formation was found whenl-Asp-2-14C was used, and products were searched by paper chromatography and X-ray film autoradiography. Asp is adsorbed by kaolinite, but no selectivity for one or the other enantiomer was observed.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
Bada, J. L., Miller, S. L.: J. Amer. Chem. Soc.92, 2774 (1970)
Bernstein, W. J., Lemmon, R. M., Calvin, M.: In: Molecular evolution, p. 151, D. L. Rohlfing, A. I. Oparin, Eds. New York: The Plenum Press 1972
Brindley, G. W.: In: The X-ray identification and crystal structures of clay minerals, p. 55, G. Brown, Ed. London: The Mineralogical Society 1961
Calvin, M.: Chemical evolution, p. 149–152. Oxford: The Clarendon Press 1969
Degens, E. T., Matheja, J.: J. Brit. Interplanet. Soc.21, 52 (1968)
Degens, E. T., Matheja, J.: In: Structure, function and origin of nucleic acids and proteins, p. 39, J. Oró, A. P. Kimball, Eds. Amsterdam: North-Holland Press 1970
Degens, E. T., Matheja, J., Jackson, T. A.: Nature227, 492 (1970)
Elias, W. E.: J. Chem. Educ.49, 448 (1972)
Grim, R. E.: Clay Mineralogy, p. 57–69. New York: McGraw-Hill 1968
Harada, K.: Naturwissenschaften57, 114 (1970)
Heyns, K., Anders, G.: Z. Physiol. Chemie287, 8 (1951)
Jennings, J. P., Klyne, W., Scopes, P. M.: J. Chem. Soc. 294 (1965)
Kopple, K. D.: Peptides and amino acids, p. 121. New York: Benjamin Press 1966
Mislow, K.: Introduction to stereochemistry, p. 119–120. New York: Benjamin Press 1966
Author information
Authors and Affiliations
Additional information
On leave from Chemistry Department McMaster University Hamilton, Ontario, Canada
Rights and permissions
About this article
Cite this article
McCullough, J.J., Lemmon, R.M. The question of the possible asymmetric polymerization of aspartic acid on kaolinite. J Mol Evol 3, 57–61 (1974). https://doi.org/10.1007/BF01795976
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01795976