CaMK

CaMK, or calcium/calmodulin-dependent protein kinase, is an enzyme activated by calcium ions and the protein calmodulin. When calcium levels rise inside a cell—such as during nerve signals or muscle activity—CaMK becomes active and helps regulate various processes. This includes modifying proteins involved in memory formation, muscle contraction, and gene expression. Essentially, CaMK acts as a molecular switch that links calcium signals to specific cellular responses, playing a vital role in brain function, learning, and overall cell communication.