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[Possible step in abiogenic molecular evolution]

E A Kaĭmakov

    Biofizika
    |January 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    Researchers observed threadlike structures during frozen solution sublimation, suggesting spiral dislocations and molecule aggregation. This offers a new hypothesis for how the primary structure of macromolecules and genetic code may have formed.

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    Area of Science:

    • Biophysics
    • Physical Chemistry
    • Origin of Life Studies

    Background:

    • Understanding the self-organization of molecules is crucial for abiogenesis research.
    • Frozen solution sublimation is a potential pathway for prebiotic molecular organization.

    Purpose of the Study:

    • To investigate the sublimation process of dilute frozen solutions.
    • To explore the formation of ordered molecular structures during sublimation.
    • To propose a mechanism for the origin of macromolecular primary structure and genetic code.

    Main Methods:

    • Experimental observation of frozen solution sublimation.
    • Analysis of revealed threadlike structures.
    • Theoretical modeling of molecular aggregation and coordination.

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    Main Results:

    • Discovery of threadlike structures formed during sublimation.
    • Explanation of structure formation via spiral dislocations and monomeric sequence aggregation (up to 10^11 links).
    • Evidence supporting a sublimation-driven mechanism for macromolecular organization.

    Conclusions:

    • Sublimation can drive the formation of long, ordered molecular sequences.
    • This mechanism provides a plausible explanation for the origin of the genetic code and stereohomogeneity in biomacromolecules.
    • The findings offer insights into early life formation processes.