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Helicity of myomesin α-helices. (A) Structure of α12 (black cartoon) and the adjacent my12 (gray cartoon and transparent surface). The N-terminal half of α12 is protected by the Ig domain via hydrophobic interactions. (B–D) Helicity of α12 (B), α9 (C), and α10 (D) in the presence (black) and absence (red) of the protection by my12, my9, or my10, respectively.
