NMR studies of prebiotic polypeptides

Details NMR studies of prebiotic polypeptides NMR studies of prebiotic polypeptides

Jan 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975orli....6..147a&link_type=abstract

Origins of Life, Volume 6, Issue 1-2, pp. 147-153

Physics

2

Scientific paper

Several polypeptides prepared by means of pyrocondensation have been the subject of structural investigations. Attention has been focused on the constitutional characterization of homo-and co-polymers containing Asp and Glu residues, whose role is essential for the formation of the so-called proteinoids. Contrary to the literature data based on chemical degradation, nmr studies show conclusively that in thermal poly-aspartic acid only β-peptide linkages are present. This result casts serious doubt on the role thermal condensation might have played in prebiotic polypeptide syntheses.

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