There are numerous data showing that a DNA molecule with alternate pirymidine‐purine
sequence can adopt a left‐handed, double‐helical Z‐DNA conformation. Such structural …

In this paper, the finite difference nonlinear Poisson− Boltzmann (NLPB) equation is used to
calculate the electrostatic contribution to the B to Z transition of DNA using detailed …

This paper reports evidence obtained by circular dichroism (CD) spectroscopy
measurements indicating that two oligoribonucleotide duplexes with the alternating purine …

We have known about conformational changes in DNA far longer than we have known its
three-dimensional structure. Early experiments showing the irreversibility of acid-base …

Natural DNAs and some polynucleotides organised in fiber present the A–B form transition
at a relative humidity (rh) which depends on the temperature. A shift of the midpoint of that …

In contrast to poly (dG)* poly (dC), which remains in the B-DNA conformation under all
experimental conditions the polynucleotides with the strictly alternating guanine/cytosine or …

The water-accessible area of DNA with a sequence of alternating guanine and cytosine
residues has been calculated for both right-handed B-DNA and left-handed Z-DNA …

We review the effect of sequence on the structure of left‐handed Z‐DNA in single crystals.
The various substituent groups that define a nucleotide base as guanine, cytosine, thymine …

Publisher Summary Z-DNA is the only known helical conformation of DNA that is left-
handed. The Z-DNA helix is longer and thinner than B-DNA, and the bases lie relatively …

Spermine has been shown to bind to and stabilize a number of altered DNA conformations,
including left-handed Z-DNA. Here, we have quantitatively studied the effects of spermine on …