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Beta structures of alternating polypeptides and their possible prebiotic significanceA survey of the commonest amino acids formed in prebiotic conditions suggests that the earliest form of genetic coding may have specified polypeptides with a strong tendency to form stable beta-sheet structures. Poly(Val-Lys), like other polypeptides in which hydrophobic and hydrophilic residues alternate, tends to form beta structures. It is shown that bilayers with a hydrophobic interior and a hydrophilic exterior may be present in aqueous solution.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Brack, A.
Orgel, L. E.
(Salk Institute for Biological Studies San Diego, Calif., United States)
Date Acquired
August 8, 2013
Publication Date
July 31, 1975
Publication Information
Publication: Nature
Volume: 256
Subject Category
Life Sciences (General)
Accession Number
Distribution Limits

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