On the orientation function of the electric dichroism of DNA

Various orientation functions based on the ‘‘saturating induced dipole model’’ are fitted to the electric dichroism data of DNA restriction fragments measured by Diekmann et al. All functions give acceptable to excellent fits. Orientation functions with an increasing number of fittable parameters are discussed. The DNA fragment length dependence of the fitted parameters as well as the error sum of the fit of some functions are presented. Simple orientation functions with three free parameters are suggested: the polarizability, the saturation field strength, and the limiting electric dichroism at infinite field strength.

[1]  K. Yoshioka.  Orientation function of the electric birefringence and dichroism of rodlike polyelectrolytes on the basis of the saturating dipole mechanism , 1983 .

[2]  N. Stellwagen.  A small DNA restriction fragment with an apparent permanent dipole moment. , 1982, Biophysical chemistry.

[3]  M. Teubner.  The motion of charged colloidal particles in electric fields , 1982 .

[4]  S. Diekmann,et al.  Electric properties and structure of DNA-restriction fragments from measurements of the electric dichroism. , 1982, Biophysical chemistry.

[5]  K. Yoshioka,et al.  Electric-field orientation of sodium poly(l-glutamate) in methanol/water and ethylene glycol/water mixtures , 1982 .

[6]  S. Diekmann,et al.  Structural analysis of self-replicating RNA synthesized by Qbeta replicase. , 1982, Journal of molecular biology.

[7]  M. Fixman.  Variational method for classical polarizabilities , 1981 .

[8]  D. Rau,et al.  Polarization of the ion atmosphere of a charged cylinder. , 1981, Biophysical chemistry.

[9]  J. G. Elias,et al.  Transient electric birefringence study of the persistence length and electrical polarizability of restriction fragments of DNA , 1981 .

[10]  G. S. Manning.  Limiting laws and counterion condensation in polyelectrolyte solutions. V. Further development of the chemical model. , 1978, Biophysical chemistry.

[11]  M. Mandel.  The electric polarization of rod-like, charged macromolecules , 1961 .

[12]  C. T. O'konski,et al.  Electric Properties of Macromolecules. IV. Determination of Electric and Optical Parameters from Saturation of Electric Birefringence in Solutions , 1959 .