TY - JOUR T1 - Flexible loops and helical arches. JO - Nat Struct Biol PY - 1998/01/01 AU - Sayers JR AU - Artymiuk PJ ED - DO - DOI: 10.1038/1358 VL - 5 IS - 8 SP - 668 EP - 670 Y2 - 2025/10/26 ER -