Calmodulin signaling

Calmodulin is a protein that helps cells respond to changes in calcium levels. When calcium ions increase inside a cell, calmodulin binds to them, changing its shape. This activated calmodulin then interacts with various other proteins, helping regulate processes like muscle contraction, hormone release, and cell growth. Essentially, calmodulin acts as a messenger that translates calcium signals into specific actions within the cell, ensuring proper cellular function and response to environmental cues.