SheetConstraint (T0349)M1 (T0349)N8 (T0349)H51 (T0349)I44 hbond (T0349)R2 1 SheetConstraint (T0349)R2 (T0349)T7 (T0349)S73 (T0349)A68 hbond (T0349)E3 1 SheetConstraint (T0349)L28 (T0349)D31 (T0349)V48 (T0349)P45 hbond (T0349)V29 1