Related Experiment Video
Updated: Jul 14, 2026

11:27
Studying DNA Looping by Single-Molecule FRET
Published on: June 28, 2014
X-ray diffraction studies of circular superhelical DNA at 300-10,000-A resolution
Nature
|November 18, 1976
Abstract:
X-ray diffraction studies on circular superhelical DNA from bacteriophage PM2 at a very low scattering angle show that it is possible to measure the superhelical scattering function of the molecule. The results suggest that in addition to the primary supercoil, a higher order of supercoiling of the DNA is present, an effect which can be interpreted with a simple analogue.

