MODRES 3FI3 OCY A 117 CYS HYDROXYETHYLCYSTEINE MODRES 3FI3 OCY A 154 CYS HYDROXYETHYLCYSTEINE MODRES 3FI3 OCY A 175 CYS HYDROXYETHYLCYSTEINE MODRES 3FI3 OCY A 201 CYS HYDROXYETHYLCYSTEINE