StrandConstraint R8 G12 0.704 HelixConstraint S19 L25 0.757 HelixConstraint D55 V62 0.708 HelixConstraint N74 Y79 0.64 HelixConstraint V83 A89 0.724 HelixConstraint K108 L113 0.92 HelixConstraint S160 E162 0.696 HelixConstraint P177 V179 0.658