title: Electron-paramagnetic-resonance lineshapes of biological molecules: some effects of distributed parameters.
abstract: Great improvements in computer simulation of e.p.r. lines in several quite different cases has been achieved by replacing simple lineshape functions with distributions of more fundamental parameters. Analysis of the functional relationships between such parameters and field position has allowed explanation of unusual lineshapes in some cases and successfully predicted anomalous lineshapes in others. The descriptive parameters employed here may in turn be displaced by more fundamental parameters; in the future, more sophisticated lineshape analysis may lead to meaningful quantification of molecular conformational flexibility.
authors.forename: J C
authors.initials: JC
authors.lastname: Salerno
mesh_terms: D003201:Computers; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods; D006418:Heme / Q000378:metabolism*; D008968:Molecular Conformation; D013113:Spin Labels
chemical_list: D013113:Spin Labels; D006418:Heme