Leonard & W.A. Linke (2004) Association of the chaperone alpha-B-crystallin with titin in heart muscle. J. Biol. Chem. 279:7917-7924. free pdf from publisher In the actomyosin in-vitro motility assay, ...

Myosin would remain bound to actin indefinitely ... For example, molecules such as titin, an unusually long and "springy" protein spanning sarcomeres in vertebrates, appears to bind to actin ...