The i-motif represents a paradigmatic example of the wide structural versatility of nucleic
acids. In remarkable contrast to duplex DNA, i-motifs are four-stranded DNA structures held …

Abstract i-Motifs are four-stranded DNA secondary structures which can form in sequences
rich in cytosine. Stabilised by acidic conditions, they are comprised of two parallel-stranded …

Mounting evidence supports the presence of biologically relevant G‐quadruplexes in single‐
cell organisms, but the existence of endogenous G‐quadruplex structures in mammalian …

The i-motif structure is formed in cytosine-rich sequences, its building block being the
cytosine· cytosine+ base pair. This structure is particularly stable at pH values below …

I-motif formation has been confirmed in a number of gene promoter sequences known to
form G-quadruplex structures. I-motif formation can occur close to physiological temperature …

Herein, G-quadruplex sequence was found to significantly decrease the diffusion current of
methylene blue (MB) in homogeneous solution for the first time. Electrochemical methods …

Investigation of i-motif is of high importance to fully understand the biological functions of G
quadruplexes in the context of double-stranded DNA. Whereas single-molecule approaches …

As non-canonical nucleic acid secondary structures consisting of cytosine-rich nucleic acids,
i-motifs can form under certain conditions. Several i-motif sequences have been identified in …

Increasing amounts of data support a role for guanine quadruplex (G4) DNA and RNA
structures in various cellular processes. We stained different organisms with monoclonal …

Noncanonical four-stranded DNA structures, including G-quadruplexes and i-motifs, have
been discovered in the cell and are implicated in a variety of genomic regulatory functions …