title: Introduction.
authors.affiliation: Max-Planck-Institute fur Medizinische Forschung, Jahnstrasse 29, Heidelberg D-61920, Germany.
authors.forename: K C
authors.initials: KC
authors.lastname: Holmes
mesh_terms: D000199:Actins / Q000502:physiology*; D000818:Animals; D009119:Muscle Contraction / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D009218:Myosins / Q000502:physiology*; D012518:Sarcomeres / Q000502:physiology*
chemical_list: D000199:Actins; D009218:Myosins