HelixConstraint E11 D14 0.643 HelixConstraint F20 L38 0.634 HelixConstraint A70 L77 0.641 HelixConstraint Y85 N99 0.719 HelixConstraint I122 R124 0.631 HelixConstraint W143 S149 0.755 HelixConstraint M151 L167 0.64