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Literature DB >> 6276838

Search for effect of longitudinally polarized protons on optically active amino acid.

Abstract

As a test of the Vester-Ulbricht hypothesis that the specific optical activity of contemporary biology arose from a differential action of polarized nuclear particles, DL-leucine has been irradiated with protons of both positive and negative longitudinal polarization. Neither kind of protons caused by measurable decomposition difference in the two optical isomers of the amino acid.

Entities: Chemical

Mesh：

Substances：
Protons
Leucine

Year: 1981 PMID： 6276838 DOI： 10.1007/bf00931488

Source DB: PubMed Journal: Orig Life ISSN： 0302-1688

4 in total

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

Authors: R M Lemmon; K M Crowe; F N Gygax; R F Johnson; B D Patterson; J H Brewer; D G Fleming
Journal: Nature Date: 1974-12-20 Impact factor: 49.962

2. Origin and role of optical isomery in life.

Authors: A S Garay
Journal: Nature Date: 1968-07-27 Impact factor: 49.962

3. Experiments of the origins of optical activity.

Authors: W A Bonner; J J Flores
Journal: Orig Life Date: 1975 Jan-Apr

4. The radiolysis of tryptophan and leucine with 32P beta-radiation.

Authors: N E Blair; W A Bonner
Journal: J Mol Evol Date: 1980-03 Impact factor: 2.395

4 in total

6 in total

Search for effect of longitudinally polarized protons on optically active amino acid.

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

2. Origin and role of optical isomery in life.

3. Experiments of the origins of optical activity.

4. The radiolysis of tryptophan and leucine with 32P beta-radiation.

Review 1. Experimental evidence for beta-decay as a source of chirality by enantiomer analysis.

2. The radiolysis and radioracemization of amino acids on clays.

Review 3. The origin and amplification of biomolecular chirality.

4. The radiolysis and racemization of leucine on proton irradiation.

5. Dissident remarks on the origin of optical activity. An intrabiological explanation.

6. Beta-decay, bremsstrahlen, and the origin of molecular chirality.