HelixConstraint K5 F15 0.694 HelixConstraint F33 R42 0.603 StrandConstraint I46 H50 0.811 HelixConstraint S80 I93 0.665 HelixConstraint K107 F117 0.709 HelixConstraint F135 K143 0.636 StrandConstraint I148 H152 0.776 HelixConstraint S182 W194 0.635