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Heart-specific Small Subunit of Myosin Light Chain Phosphatase Activates Rho-associated Kinase and Regulates Phosphorylation of Myosin Phosphatase Target Subunit 1

28 Aug 2010

Abstract excerpt

Phosphorylation of myosin regulatory light chain (MLC) plays a regulatory role in muscle contraction, and the level of MLC phosphorylation is balanced by MLC kinase and MLC phosphatase (MLCP). MLCP consists of a catalytic subunit, a large subunit (MYPT1 or MYPT2), and a small subunit. MLCP activity is regulated by phosphorylation of MYPTs, whereas the role of small subunit in the regulation remains unknown. We...

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PMID: 20801872
DOI: 10.1074/jbc.m110.122390

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