Abstract At present we have some understanding about the mechanisms of prebiotic synthesis and polymerization. Experiments are also being carried out on the prebiotic replication of the nucleic acids. However, the greatest gap in our knowledge is the prebiotic mechanism for the polynucleotide directed synthesis of polypeptides. Some insight into potential mechanisms of this type is afforded by the recent determination of the three-dimensional structure of yeast phenylalanine rRNA. The poly-nucleotide chain id found to be highly folded and the molecule is found in an L shaped configuration. One end of the L shaped molecule contains the anticodon loop; that arm of the L is made of the double helical anticodon and dihydro U stems. The other end of the L shaped molecule contains the 3′OH adenosine to which the amino acid is added during aminoacylation. That arm of the L is built of the double helical CCA and TΨC stems. The corner of the L is formed by the close approximation of the TΨC loop and dihydro U loop. The distance between the anticodon and the 3′OH adenosine end of the molecule is 76 Å. Comments are made about the manner in which the tRNA molecule may have evolved and in addition, some suggestions are presented about the prebiotic interactions of primitive tRNA polynucleotides and messenger RNA strands.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Transfer RNA and the translation apparatus in the origin of life


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    1974




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    Lokalklassifikation TIB:    535/3908/4290
    BKL:    44.71 Verkehrsmedizin




    Translation transfer type can clamp

    LI HE / GAO DONGMING / GAO XIAOHAI et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Chirality and the Origin of Life

    Bailey, J. / International Astronomical Federation | British Library Conference Proceedings | 1998


    Macromolecules and the origin of life

    Noda, Haruhiko / Mizutani, Hiroshi / Okihana, Hiroyuki | Online Contents | 1975


    The origin of life

    Horowitz, N. H. / Miller, S. L. | NTRS | 1966