Skip to main content
A stable, high capacity, F-actin affinity column
Women’s Health Research Faculty Publications
  • Elizabeth J. Luna, University of Massachusetts Medical School
  • Y. L. Wang
  • E. W. Voss, Jr.
  • D. Branton
  • D. L. Taylor
UMMS Affiliation
Department of Cell Biology
Publication Date
Document Type
*Actins; Animals; Chromatography, Affinity; Microscopy, Electron; Muscle Proteins; Muscles; Rabbits; Sepharose; Spectrometry, Fluorescence

A high capacity F-actin affinity matrix is constructed by binding fluorescyl-actin to rabbit anti-fluorescein IgG that is covalently bound to Sepharose 4B. When stabilized with phalloidin, the actin remains associated with the Sepharose beads during repeated washes, activates the ATPase activity of myosin subfragment 1, and specifically binds 125I-heavy meromyosin and 125I-tropomyosin. The associations between the F-actin affinity matrix and the iodinated F-actin binding proteins are monitored both by affinity chromatography and by a rapid, low speed sedimentation assay. Anti-fluorescein IgG-Sepharose should be generally useful as a matrix for the immobilization of proteins containing accessible, covalently bound fluorescein groups.

J Biol Chem. 1982 Nov 10;257(21):13095-100.
Related Resources
Link to article in PubMed
PubMed ID
Citation Information
Elizabeth J. Luna, Y. L. Wang, E. W. Voss, D. Branton, et al.. "A stable, high capacity, F-actin affinity column" Vol. 257 Iss. 21 (1982) ISSN: 0021-9258 (Print)
Available at: