Please cite as: CSH Protocols; 2007; doi:10.1101/pdb.prot4675

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Purification of Bovine Lens and Bacterially Expressed Human Vimentin

Edward R. Kuczmarski and Robert D. Goldman

This protocol was adapted from "Imaging Intermediate Filament Proteins in Living Cells," Chapter 30, in Live Cell Imaging (eds. Goldman and Spector). Cold Spring Harbor Laboratory Press, Cold Spring Harbor, NY, USA, 2005.


INTRODUCTION

Intermediate filaments (IF) are major cytoskeletal systems of vertebrate and many nonvertebrate cells whose expression is cell-type specific and developmentally regulated. This protocol describes a method for purifying one type of IF, vimentin, from bovine lens tissue. Purification of human vimentin expressed in Escherichia coli is also described. These methods are useful in the preparation of other IF protein subunits for microinjection studies as well.


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