Warning: Undefined array key "mm" in /www/wwwroot/www.ai-bt.com/si.php on line 10 Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /www/wwwroot/www.ai-bt.com/si.php on line 10 Mirror symmetry breaking at the molecular level.

Literature DB >> 8876153

Mirror symmetry breaking at the molecular level.

Abstract

Reasoning from two basic principles of molecular physics, P invariance of electromagnetic interaction and the second law of thermodynamics, one would conclude that mirror symmetry retained in the world of chiral molecules. This inference is fully consistent with what is observed in inorganic nature. However, in the bioorganic world, the reverse is true. Mirror symmetry there is definitely broken. Is it possible to account for this phenomenon without going beyond conventional concepts of the kinetics of enantioselective processes? This study is an attempt to survey all existing hypotheses containing this phenomenon.

Mesh：

Substances：

Year: 1996 PMID： 8876153 PMCID： PMC38075 DOI： 10.1073/pnas.93.21.11435

Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN： 0027-8424 Impact factor: 11.205

26 in total

Mirror symmetry breaking at the molecular level.

1. Five simultaneous steady states in a flipping two-compartment-system with optical antipodes.

2. Directed evolution of an RNA enzyme.

3. RNA chemistry. Ribozyme self-replication?

4. A general criterion for molecular recognition: implications for chiral interactions.

5. RNA based evolutionary optimization.

Review 6. Origin of the homochirality of biomolecules.

7. RNA evolution and the origins of life.

8. The case for an ancestral genetic system involving simple analogues of the nucleotides.

9. The possibility of spontaneous resolution of enantiomers on a catalyst surface.

10. The triose model: glyceraldehyde as a source of energy and monomers for prebiotic condensation reactions.

1. Asymmetric photolysis with elliptically polarized light.

2. Homochirality of biomolecules: counter-arguments against critical notes.

3. A toy model for the generation of homochirality during polymerization.

4. Lipid aggregates inducing symmetry breaking in prebiotic polymerisations.

5. Recycling Frank: Spontaneous emergence of homochirality in noncatalytic systems.

6. Evolution of homochirality by epimerization of random peptide chains. A stochastic model.

7. Astrobiology and biological chirality.

8. Glyoxylate as a backbone linkage for a prebiotic ancestor of RNA.

9. Question 4: short remarks about the origin of homochirality.

10. Question 4: basic questions about the origin of life: on chirobiogenesis.