Internal dynamics of linear and superhelical DNA as studied by photon correlation spectroscopy.

Photon correlation spectroscopy has been used to study the translational (D0) and internal dynamics of monodisperse linear and polydisperse superhelical plasmid-DNAs. Scattering vector dependent correlation functions were measured and analyzed with the inverse Laplace transform CONTIN written by S. Provencher.

Dynamics of F-actin and F-actin/filamin networks as studied by photon correlation spectroscopy.

Photon correlation spectroscopy was used to study both F-actin and F-actin/filamin networks in solution. The measured autocorrelation functions were analyzed with the inverse Laplace transform CONTIN. The resulting frequency distributions consist of maximal five relatively narrow peaks.

Internal dynamics of tRNA(Phe) studied by depolarized dynamic light scattering.

The collective internal dynamics of transfer RNA(Phe) from brewer's yeast in solution was studied by depolarized dynamic light scattering (DDLS). Within the melting region of tRNA the depolarized spectra consist of two Lorentzian, where the narrow (slow) component describes the overall rotation of the macromolecule. The broad component is attributed to the collective reorientation of the bases within the biopolymer.