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1. (n.) calmodulin
a protein, present in most cells, that binds calcium and participates in many physiological functions.
Etymology: (1975–80; cal (cium ) +modul (ate ) + -in1)
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| Definition of 'calmodulin' |
U.S. National Library of Medicine |
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1. calmodulin
A heat-stable, low-molecular-weight activator protein found mainly in the brain and heart. The binding of calcium ions to this protein allows this protein to bind to cyclic nucleotide phosphodiesterases and to adenyl cyclase with subsequent activation. Thereby this protein modulates cyclic AMP and cyclic GMP levels.
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