Chirality of electrons from beta-decay and the left-handed asymmetry of proteins

Details Chirality of electrons from beta-decay and the left-handed asymmetry of proteins Chirality of electrons from beta-decay and the left-handed asymmetry of proteins

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981orli...11..255m&link_type=abstract

Origins of Life, Volume 11, Issue 3, pp.255-265

Mathematics

13

Scientific paper

A simplified mathematical model of the origin of the left-handed asymmetry of proteins in living matter is presented. The model is based on the hypothesis of Vester and Ulbricht that the chirality of (lefthanded) electrons from naturally beta-active elements, e.g.,14C,40K, etc., was the specific source of the asymmetry; it requires for its application data on the interaction of electrons having non-zero chirality with racemic mixtures of amino acids. This interaction is here treated theoretically in an order-of-magnitude calculation. Our analysis yields a very approximate value of the induced steady-state asymmetry in the amino acids at the beginning of protein synthesis and indicates that this asymmetry, though small, may have been suffcient to account for the dominant left-handedness of proteins now observed.

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