Sequence-dependent configuration changes and condensation of double-stranded poly (dG-
dC)·(dG-dC)(GC-DNA) and ds poly (dA-dT)·(dA-dT)(AT-DNA) were observed by atomic force …

Condensation of DNA by multivalent cations can provide useful insights into the physical
factors governing the folding and packaging of DNA in vivo. In this work, local ordered …

It has been established that in a dilute solution individual giant DNA molecules undergo a
large discrete transition between an elongated coil state and a folded compact state. On the …

Some proteins have the property of self-assembly, known to be an important mechanism in
constructing supramolecular architectures for cellular functions. However, as yet, the ability …

Counterion specificity of DNA condensation is rationalized from a theory of electrostatic
interaction between helical molecules that accounts for different charge distribution patterns …

Over the past decade, it has been established that a single semiflexible polymer chain can
undergo a discrete first-order phase transition between an elongated coil state and a folded …

The sequence of a DNA molecule is known to influence its secondary structure and
flexibility. Using a combination of bulk and single-molecule techniques, we measure the …

The higher-order structure of compacted single giant DNA induced by complexation with
polypeptide (poly-Arg) in NaCl solution was investigated using fluorescence microscopy. As …

In the presence of condensing agents, single chains of giant double-stranded DNA undergo
a first-order phase transition between an elongated coil state and a folded compact state. To …

Spermine and [Co (NH3) 6] 3+ are known to induce the B→ Z transition in poly (dG-dC)· poly
(dG-dC) DNA. In this paper gel electrophoresis shift assays using the long DNA poly (dG …