Article
Myosin light chain kinase and myosin phosphorylation effect frequency-dependent potentiation of skeletal muscle contraction.
Proceedings of the National Academy of Sciences of the United States of America - 29 Nov 2005
Zhi Gang, Ryder Jeffrey W, Huang Jian, Ding Peiguo, Chen Yue, Zhao Yingming, Kamm Kristine E, Stull James T
Abstract excerpt
Repetitive stimulation potentiates contractile tension of fast-twitch skeletal muscle. We examined the role of myosin regulatory light chain (RLC) phosphorylation in this physiological response by ablating Ca(2+)/calmodulin-dependent skeletal muscle myosin light chain kinase (MLCK) gene expression. Western blot and quantitative-PCR showed that MLCK is expressed predominantly in fast-twitch skeletal muscle fibers...
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