| Literature DB >> 19427903 |
Kirsten Remmert1, Takehito Uruno, John A Hammer.
Abstract
Capping protein (CP) is a ubiquitously expressed, heterodimeric actin binding protein that is essential for normal actin dynamics in cells. The existing methods for purifying native CP from tissues and recombinant CP from bacteria are time-consuming processes that involve numerous conventional chromatographic steps and functional assays to achieve a homogeneous preparation of the protein. Here, we report the rapid purification of Acanthamoeba CP from amoeba extracts and recombinant mouse CP from E. coli extracts using as an affinity matrix GST-fusion proteins containing the CP binding site from Acanthamoeba CARMIL and mouse CARMIL-1, respectively. This improved method for CP purification should facilitate the in vitro analysis of CP structure, function, and regulation.Entities:
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Year: 2009 PMID： 19427903 PMCID： PMC2713380 DOI： 10.1016/j.pep.2009.05.002
Source DB: PubMed Journal: Protein Expr Purif ISSN： 1046-5928 Impact factor: 1.650