What is the function of troponin in muscle contraction?

Muscle contraction is initiated by a signal sent by the central nervous system (CNS) via a motor neuron.The junction between a motor neuron and the sarcolemma of the muscle fibre is called the neuromuscular junction or motor-end plate.When a neural signal reaches the neuromuscular junction, it releases a neurotransmitter (Acetylcholine) which generates an action potential in the sarcolemma.The junction between a motor neuron and the sarcolemma of a muscle fiber is called the neuromuscular junction or motor-end plate.In the resting state, a subunit of troponin masks the active binding sites for myosin on actin filaments.