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  • Title: [The secondary structure of nucleotidyl-(5' bound to N)-amino acids containing different heterocyclic bases and amino acids].
    Author: Tiaglov BV, Gromova ES, Zenin SV, Sergeev GB, Shabarova ZA, Prokof'ev MA.
    Journal: Mol Biol (Mosk); 1975; 9(5):652-66. PubMed ID: 1214805.
    Abstract:
    Nucleotidyl-(5' leads to N)-amino acids containing different heterocycle bases: adenine, guanine, hypoxanthine, cytosine, uracyl, and aromatic amino acids: phenylalanine, tyrosine and tryptophan, have been investigated by proton magnetic resonance and circular dichroism. For all the compounds studied folded conformation have been shown stabilized by hydrophobic interaction in aqueous solution. The comparison of the results of the studied nucleotidyl-(5' leads to N)-amino acids unable us to build four secondary structure types in these very compounds. Phenylalanine and tyrosine derivatives of purine nucleotides can be regarded as the first type, tryptophan derivatives of purine nucleotides as the second type, phenylalanine and tyrosine derivatives of pyrimidine nucleotides as the third type and tryptophan derivatives of pyrimidine nucleotides as the fourth type. For each group of these compounds conformational models have been built. In all these compounds the anti-conformation has been proved to exist.
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