My current research interests are focused on understanding the molecular mechanisms by which myosin binding protein C, a key muscle protein regulates the hearts ability to contract. The heart contracts on a beat-to-beat basis through orchestrated interactions of electrical, chemical and mechanical elements within the sarcomere, the elementary contractile unit. Ultimately, cardiac contraction results from sarcomere shortening due the sliding of actin-based thin filaments past myosin-based thick filaments. Myosin binding protein C is a thick-filament associated regulator of actomyosin sliding, and we have shown that is exerts its functional effects through direct interactions between both the actin- and myosin-based filamentous systems. My current studies are focused on further defining the binding partners involved in these regulatory interactions, and building complexity into my in vitro model systems to understand myosin binding protein C's function in the presence of additional actomyosin regulatory components which exist within the sarcomere. This work will continue to provide insight why mutations in myosin binding protein C's gene (MYBPC3) are a leading cause of heart disease including hypertrophic cardiomyopathy.