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Increased Synthesis of the Phosphorylated Form of the Myosin Light Chains in Cardiac Hypertrophy in the Rat

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Abstract

The incorporation rate of [3H]leucine into cardiac myosin subunits was studied in rat hearts undergoing hypertrophy secondary to constriction of the ascending aorta. Cardiac myosin was prepared by a modified Shiverick’s method on the second and fourth day after constriction. Myosin light chains were separated by urea and subjected to two-dimensional electrophoresis. Incorporation of [3H]leucine was determined in electrophoretically separated heavy and light chains by the method of Martin et al. (11). It was found that the incorporation rate of [3H]leucine into the phosphorylated form of the myosin light chain 2 is significantly increased in hypertrophic hearts as compared to sham animals.

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© 1983 Springer Science+Business Media New York

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Kwiatkowska-Patzer, B., Prior, G., Zak, R. (1983). Increased Synthesis of the Phosphorylated Form of the Myosin Light Chains in Cardiac Hypertrophy in the Rat. In: Chazov, E., Saks, V., Rona, G. (eds) Advances in Myocardiology. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-4441-5_15

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  • DOI: https://doi.org/10.1007/978-1-4757-4441-5_15

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4757-4443-9

  • Online ISBN: 978-1-4757-4441-5

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