HelixConstraint E7 A15 0.719 HelixConstraint L20 L40 0.631 HelixConstraint T47 T62 0.732 HelixConstraint K73 K80 0.609 HelixConstraint P85 A98 0.608 HelixConstraint P102 A114 0.607 HelixConstraint S128 K136 0.607 HelixConstraint M142 L153 0.623 HelixConstraint L162 M171 0.607 HelixConstraint L183 H191 0.653 HelixConstraint L211 L223 0.694 HelixConstraint S230 L245 0.64