Abstract:Non-coding DNA is rich in adenines and thymines. Their unique properties, such as high polymorphism, flexibility, transitional states that lead to DNA hairpin formation and the possibility to adopt either Watson-Crick or Hoogsteen base pairing conformations, in conjunction with its distribution in genomes, suggest the possibility of a structural role. In spite of that, the available structural information for AT-rich oligonucleotides in databases such as Protein Data Bank (PDB) and Nucleic Acids Data Bank (NDB… Show more
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