释义 |
calmodulin, n. Biochem.|kælˈmɒdjʊlɪn| [f. calcium n. + modulator n. + -in1.] A calcium-binding protein in eukaryotic cells which when complexed with calcium regulates many intracellular functions, esp. the action of enzymes.
1978W. Y. Cheung et al. in Adv. Cyclic Nucleotide Res. IX. 249 Within this context, the activator may serve as a Ca2+ mediator, or as a Ca2+ -dependent modulator. In view of the potential multiple and diverse functions, the activator protein may be designated calmodulin. 1979Science 20 Apr. 306/2 Red blood cell activator and calmodulin are part of a family of Ca2+ -binding proteins that includes the Ca2+ -binding regulatory protein of skeletal muscle, troponin C. 1982Sci. Amer. June 52/1 Calmodulin..is apparently a component of all eukaryotic (nucleated) cells. 1989E. Lawrence Guide Mod. Biol. ix. 272 (caption) Each molecule of calmodulin has four Ca2+ -binding sites. |