    New chain ID            Original chain ID

8jwt-pdb-bundle1.pdb:
           A                         F
           B                         G
           C                         H
           D                         I
           E                         J
           F                         E
           G                         D
           H                         Q
           I                         A
           J                         B
           K                         C
           L                         K
           M                         L
           N                         M
           O                         N
           P                         O
           Q                         P
           R                         R
           S                         S
           T                         T
           U                         V
           V                         W
           W                         X
           X                         Y
           Y                         Z
           Z                        AA
           a                        BA
           b                        CA
           c                        DA
           d                        EA
           e                        FA
           f                        GA
           g                        HA
           h                        IA
           i                        JA
           j                        KA
           k                        LA
           l                        MA
           m                        NA
           n                        OA
