HelixConstraint I22 K34 0.668 HelixConstraint H69 L71 0.754 HelixConstraint G95 K96 0.63 HelixConstraint E98 S101 0.609 HelixConstraint P135 A142 0.68 HelixConstraint G160 F164 0.658 HelixConstraint F178 M186 0.705