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Background Many studies have shown that guanine-rich DNA sequences form quadruplex structures (G4) in vitro but there is scarce evidence of guanine quadruplexes in vivo. The majority of potential quadruplex-forming sequences (PQS) are located in transposable elements (TEs), especially close to promoters within long terminal repeats of plant LTR retrotransposons. Results In order to test the potential...
The data provided in this article are related to the research article "The expanding repertoire of G4 DNA structures" [1]. Secondary structures of G-rich oligonucleotides (ONs) that represent “imperfect” G-quadruplex (G4) motifs, i.e., contain truncated or interrupted G-runs, were analyzed by optical methods. Presented data on ON structures include circular dichroism (CD) spectra, thermal...
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