caa a22 4500 469128100 CHVBK 20180323133156.0 cr unu---uuuuu 170328e19921101xx s 000 0 eng 10.1007/BF01809371 doi (NATIONALLICENCE)springer-10.1007/BF01809371 Investigations on the mechanism of the salt-induced peptide formation [Elektronische Daten] [Michael Schwendinger, Bernd Rode] The applicability of the salt-induced peptide formation in aqueous solution — the simplest model so far for peptide synthesis under primitive earth conditions — is demonstrated for valine as another amino acid, and the formation of mixed peptides in systems containing glycine, alanine and valine is investigated. The dominant dipeptides formed are Gly-Gly, Gly-Ala and Gly-Val, at longer reaction times sequence inversion produces Ala-Gly and, considerably slower, Val-Gly. Ala-Ala is also produced and the relative amounts of the diastereomers prove the high conservation of optical purity of the original amino acids over a considerable time. The results lead to some further conclusions about the reaction mechanism and the possible dominance of peptide sequences in primordial dipeptides. Kluwer Academic Publishers, 1992 Schwendinger Michael Institute of Inorganic and Analytical Chemistry, University of Innsbruck, Innrain 52a, A-6020, Innsbruck, Austria aut Rode Bernd Institute of Inorganic and Analytical Chemistry, University of Innsbruck, Innrain 52a, A-6020, Innsbruck, Austria aut Origins of life and evolution of the biosphere Kluwer Academic Publishers 22/6(1992-11-01), 349-359 0169-6149 22:6<349 1992 22 11084 https://doi.org/10.1007/BF01809371 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01809371 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schwendinger Michael Institute of Inorganic and Analytical Chemistry, University of Innsbruck, Innrain 52a, A-6020, Innsbruck, Austria aut NATIONALLICENCE 700 1- Rode Bernd Institute of Inorganic and Analytical Chemistry, University of Innsbruck, Innrain 52a, A-6020, Innsbruck, Austria aut NATIONALLICENCE 773 0- Origins of life and evolution of the biosphere Kluwer Academic Publishers 22/6(1992-11-01), 349-359 0169-6149 22:6<349 1992 22 11084 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer