L Amino Acids and D-Glucose Bind Stereospecifically to a Colloidal Clay
- 23 March 1979
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 203 (4386), 1243-1244
- https://doi.org/10.1126/science.424749
Abstract
L-Leucine, L-aspartate, and D-glucose bind in a stereospecific manner to a colloidal clay, bentonite. This binding has high-affinity, saturable characteristics. The biologically uncommon enantiomers, D-leucine, D-asparatate, and L-glucose, do not exhibit any selective absorption on bentonite. It is suggested that this difference between stereoisomers could account for the evolution of life forms possessing a great preponderance of L amino acids and D-glucose.This publication has 2 references indexed in Scilit:
- Prebiotic Synthesis of Polypeptides by Heterogeneous Polycondensation of Amino-acid AdenylatesNature, 1970
- THE ATTRACTIONS OF PROTEINS FOR SMALL MOLECULES AND IONSAnnals of the New York Academy of Sciences, 1949