Electrodynamic theory of fluorescence polarization of solutions: theory and application to the determination of protein-protein separation.
The phenomenon of the fluorescence polarization of solutions has found numerous applications in biophysics, biochemistry, immunology, and diagnostic and clinical medicine. The current theory to explain the phenomenon of fluorescence polarization in solutions was developed by F. Perrin in 1926. Perrin based his theory on the belief that fluorescence polarization is a manifestation of rotational Brownian motion. Fluorescence polarization, however, is an electromagnetic radiation phenomenon. Using Maxwell's equations, suitably modified to account for the quantum behavior of fluorescence, E. Collett developed a theory of fluorescence polarization (the electrodynamic theory) based on a model of dipole-dipole interactions. The electrodynamic theory is used to investigate protein-protein assays to determine the minimum and maximum binding distances between the proteins for (1) an estrogen receptor DNA bound to a fluorescein labeled estrogen response element and (2) a green fluorescent protein chimera of S-peptide (S65T-His6) bound to a free S-protein.
Collett
Edward
E
Department of Physics, Georgian Court University, 900 Lakewood Avenue,Lakewood, New Jersey 08701-2697, USA.
Schaefer
Beth
B
D002678:Chimera; D004247:DNA / Q000378:metabolism; D019793:Fluorescein; D005454:Fluorescence Polarization; D005456:Fluorescent Dyes; D049452:Green Fluorescent Proteins / Q000235:genetics; D008962:Models, Theoretical; D011506:Proteins / Q000302:isolation & purification* / Q000378:metabolism; D011960:Receptors, Estrogen / Q000235:genetics; D020218:Response Elements / Q000502:physiology; D012996:Solutions / Q000737:chemistry*
D005456:Fluorescent Dyes; D011506:Proteins; D011960:Receptors, Estrogen; D012996:Solutions; D049452:Green Fluorescent Proteins; D004247:DNA; D019793:Fluorescein