A Caltech Library Service

Tropomyosin antibody: the specific localization of tropomyosin in nonmuscle cells

Lazarides, Elias (1975) Tropomyosin antibody: the specific localization of tropomyosin in nonmuscle cells. Journal of Cell Biology, 65 (3). pp. 549-561. ISSN 0021-9525. PMCID PMC2109442.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


An antibody against purified chicken skeletal muscle tropomyosin is used in indirect immunofluorescence to visualize the localization of tropomyosin in a variety of nonmuscle cells. The antibody produces a fluorescent pattern which is very similar to that obtained with an actin-specific antibody. This pattern is composed of fluorescent fibers which are shown to be coincident with the fibers seen with phase-contrast optics. High resolution epifluorescent microscopy reveals that fibers stained with the actin antibody show a continuous fluorescence, while fibers reacted with the tropomyosin antibody show a periodic fluorescence. Measurements indicate that the lengths of the fluorescent segments are variable with an average of 1.2 μm while the spacing between segments is approximately 0.4 μm.

Item Type:Article
Related URLs:
URLURL TypeDescription CentralArticle
Additional Information:© 1975 Rockefeller University Press. Received for publication 14 November 1974, and in revised form 18 February 1975. The author is grateful to Drs. K. Weber and R. Pollack for the generous use of their laboratory facilities. He would also like to thank Drs. J. D. Watson, R. F. Gesteland, M. Howe, R. Goldman, and G. Albrecht- Bühler for their moral support and helpful criticism throughout this work. The author is particularly grateful to Dr. C. Anderson for introducing him to the technique of SDS slab gel electrophoresis and for his invaluable suggestions throughout this work. He also expresses gratitude to Dr. S. Lowey at Brandeis University for her generous gift of purified proteins, to Dr. F. Miller at the State University of New York at Sonty Brook for his continuous advice on the preparation of the antibodies, and to Dr. J. W. Sanger at the University of Pennsylvania Medical School for his critical evaluation of this work. This investigation was supported by a grant from the National Institutes of Health (Research Grant CA 13106 from the National Cancer Institute).
Funding AgencyGrant Number
NIHCA 13106
National Cancer InstituteUNSPECIFIED
Issue or Number:3
PubMed Central ID:PMC2109442
Record Number:CaltechAUTHORS:20120802-133022206
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:32890
Deposited By: Jason Perez
Deposited On:02 Aug 2012 22:00
Last Modified:02 Jul 2020 20:38

Repository Staff Only: item control page