HelixConstraint Q23 D27 0.6352 HelixConstraint Y37 E52 0.7187 StrandConstraint L58 L62 0.7409 StrandConstraint Y69 E75 0.7533 StrandConstraint V81 R83 0.6851 HelixConstraint K88 L101 0.7105 HelixConstraint E107 L110 0.705