HelixConstraint V281 E287 0.815 HelixConstraint T298 K310 0.682 HelixConstraint V314 M315 0.682 HelixConstraint D333 Q341 0.635 HelixConstraint E348 A355 0.63 HelixConstraint A372 V387 0.687 StrandConstraint A394 I397 0.654 StrandConstraint M406 E408 0.613 HelixConstraint V427 F429 0.73