Search for selectivity between optical isomers in reactions of polarised positive muons with alanines and octanols

Details Search for selectivity between optical isomers in reactions of polarised positive muons with alanines and octanols Search for selectivity between optical isomers in reactions of polarised positive muons with alanines and octanols

Dec 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974natur.252..692l&link_type=abstract

Nature, Volume 252, Issue 5485, pp. 692-694 (1974).

Physics

10

Scientific paper

ONE of the most intriguing problems in chemical evolution is the origin of optical asymmetry in biopolymers. The easiest way to state the problem is: why are proteins made almost exclusively of L-amino acid optical isomers and natural sugars of D-optical isomers?1 That proteins must be made of only one kind of optical isomer is understandable on the basis of their need for precise three-dimensional conformations in order to perform their catalytic roles as enzymes. But, is it just a matter of chance, as suggested in refs 2-4, that our proteins are L-, or is there (was there) some asymmetrical agent on our planet that made the protein L-configuration the one upon which life is based?

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