HelixConstraint A50 S58 0.734 HelixConstraint T65 K77 0.8 StrandConstraint L86 R87 0.705 HelixConstraint I119 K133 0.806 HelixConstraint E142 L158 0.673 HelixConstraint R167 A180 0.959 HelixConstraint K191 E203 0.693 HelixConstraint E208 I217 0.697 HelixConstraint P220 N235 0.861