TYR-GLY-GLY-PHE-LEU-D-ARG-ARG-ILE-ARG-PRO-LYS-LEU-LYS;YGGFLD-RRIRPKLK;(D-ARG6)-DYNORPHIN A (1-13);[D-ARG6]-DYNORPHIN A (1-13), PORCINE;DYNORPHIN A PORCINE [D-ARG6]-FRAGMENT 1-13;H-TYR-GLY-GLY-PHE-LEU-D-ARG-ARG-ILE-ARG-PRO-LYS-LEU-LYS-OH;dynorphin A D-arg