Titin

+Titin is a colossal [protein](/wiki/protein), the largest known in the human body. This molecular spring anchors within [sarcomeres](/wiki/sarcomere), playing a critical role in muscle elasticity, passive force generation, and structural integrity.

+## See also

+- [Myosin](/wiki/myosin)

+- [Actin](/wiki/actin)

+- [Muscle Fiber](/wiki/muscle_fiber)