Definition of calmodulin in English:
 calmodulin
noun kalˈmɒdjʊlɪnkalˈmäjələn
mass nounBiochemistry A protein which binds calcium and is involved in regulating a variety of activities in cells.
 Example sentencesExamples
-  As examples, we have probed yeast proteome chips with calmodulin and six different phospholipids.
 -  High levels of intracellular calcium allow calmodulin to activate the myosin light chain kinase that facilitates muscle contraction.
 -  These mechanisms include allosteric regulation, regulation by reversible covalent modification and regulation by control proteins such as calmodulin.
 -  One of the subunits of this enzyme is the ubiquitous protein, calmodulin.
 -  A trivial reason explaining how both step sizes can be the same, is that the labeled calmodulin is bound to the catalytic domain.
 
Origin
  
1970s: from cal(cium) + modul(ate) + -in1.