. . . . . . . . . . . . . . "a(SCHEM:\"cyclic AMP\") -| kin(p(RGD:Mylk))" . "Approximately 61,000 statements." . "Copyright (c) 2011-2012, Selventa. All rights reserved." . "BEL Framework Large Corpus Document" . . "20131211" . "Cardiovascular Physiology Concepts" . "Cardiovascular Physiology Concepts" . "Other" . "The free calcium binds to a special calcium binding protein called calmodulin. Calcium-calmodulin activates myosin light chain kinase (MLCK), an enzyme that is capable of phosphorylating myosin light chains (MLC) in the presence of ATP. Myosin light chains are 20-kD regulatory subunits found on the myosin heads. MLC phosphorylation leads to cross-bridge formation between the myosin heads and the actin filaments, and hence, smooth muscle contraction." . . "Selventa" . . . . "2014-07-03T14:31:29.036+02:00"^^ . . .