StrandConstraint A5 L6 0.618 HelixConstraint L24 L31 0.8 HelixConstraint L56 H67 0.639 StrandConstraint S73 L77 0.817 HelixConstraint F82 N88 0.609 HelixConstraint V114 S120 0.716 HelixConstraint K152 L154 0.632 HelixConstraint F171 K179 0.773