HelixConstraint M1 D6 0.604 HelixConstraint P59 A63 0.775 HelixConstraint W70 N71 0.708 HelixConstraint V73 I82 0.751 StrandConstraint K124 V128 0.773 StrandConstraint V171 Y172 0.727 HelixConstraint T182 R185 0.729 StrandConstraint R195 V199 0.698 HelixConstraint A206 P207 0.663 HelixConstraint D224 F229 0.614