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The Journal of Cell Biology, Vol 113, 585-590, Copyright © 1991 by The Rockefeller University Press
ARTICLES |
EM McNally, MM Bravo-Zehnder and LA Leinwand
Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York 10461.
To begin to understand the nature of myosin subunit assembly, we determined the region of a vertebrate sarcomeric myosin heavy chain required for binding of light chain 1. We coexpressed in Escherichia coli segments of the rat alpha cardiac myosin heavy chain which spanned the carboxyl terminus of subfragment 1 and the amino terminus of subfragment 2 with a full-length rat cardiac myosin light chain 1. A 16 amino acid region of the myosin heavy chain (residues 792-808) was shown to be required for myosin light chain 1 binding in an immunoprecipitation assay.
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