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  • Title: Interaction of aromatic amino acids with neutral polyadenylic acid.
    Author: Raszka M, Mandel M.
    Journal: Proc Natl Acad Sci U S A; 1971 Jun; 68(6):1190-1. PubMed ID: 5288367.
    Abstract:
    The aromatic amino acids tryptophan, phenylalanine, and histidine interact with singlestranded polyadenylic acid [poly(A)] as observed by proton magnetic resonance spectroscopy. The chemical shift of the C(2) and C(8) protons of the adenine moiety of poly(A) is consistent with a destacking of the initially partly-stacked polynucleotide chain by the intercalation of the planar ring structure. The relative magnitude of this interaction is tryptophan>phenylalanine>histidine.
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