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NMR studies of prebiotic polypeptides (1975)

Andini, Salvatore ; Benedetti, Ettore ; Ferrara, Luciano ; [et al.]

Springer

Origins of life and evolution of the biospheres 6 (1975), S. 147-153

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ISSN: 1573-0875

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Geosciences

Notes: Abstract 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.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01372399

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