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Created page with "== Introduction == Calmodulin (CaM) is a multifunctional intermediate calcium-binding messenger protein expressed in all eukaryotic cells. It is an essential component of the calcium signal transduction pathway, mediating various cellular processes by interacting with a wide array of target proteins. Calmodulin plays a pivotal role in the regulation of cellular activities, including muscle contraction, intracellular movement, cell division, and signal transduction...."