title: Isolation of the intermediate filament protein vimentin by chromatofocusing.
abstract: A novel, simple and relatively rapid method is described for the isolation of the intermediate-sized filament protein vimentin from eye lens tissue. Chromatofocusing is applied as the sole purification step. The apparent isoelectric point of the protein in 6 M urea and at 22 degrees C is 4.9. Electrophoretic mobility on one- and two-dimensional polyacrylamide gels, solubility in 6 M urea and amino acid composition were used for identification.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D002417:Cattle; D004591:Electrophoresis, Polyacrylamide Gel; D006863:Hydrogen-Ion Concentration; D007525:Isoelectric Focusing; D007908:Lens, Crystalline / Q000032:analysis; D008722:Methods; D014746:Vimentin / Q000302:isolation & purification*
chemical_list: D000596:Amino Acids; D014746:Vimentin