title: Human spectrin. II. An electro-optic study.
abstract: The electrically induced birefringence of human spectrin heterodimer solutions has been studied. 1. Human spectrin heterodimers were found to have a specific Kerr constant Bsp = +(5 +/- 2) . 10(-11) m4/(V2 . kg). 2. Human spectrin exhibited a birefringence relaxation time tau decay = (2.0 +/- 0.3) microseconds. 3. The electro-optic study indicates that human spectrin heterodimers have a contour length of more than 40--50 nm.
mesh_terms: D001718:Birefringence; D004229:Dithiothreitol; D006801:Humans; D007700:Kinetics; D046911:Macromolecular Substances; D008565:Membrane Proteins; D011487:Protein Conformation; D013049:Spectrin
chemical_list: D046911:Macromolecular Substances; D008565:Membrane Proteins; D013049:Spectrin; D004229:Dithiothreitol