HelixConstraint K23 V47 0.605 StrandConstraint E55 S59 0.649 HelixConstraint C66 L74 0.619 StrandConstraint Y80 F82 0.855 HelixConstraint E93 Q100 0.605 HelixConstraint E117 E125 0.616 HelixConstraint A145 F151 0.759 StrandConstraint A160 V162 0.806 HelixConstraint L199 Y208 0.613 HelixConstraint W249 A254 0.687 StrandConstraint W291 Y292 0.705