    New chain ID            Original chain ID

7wg5-pdb-bundle1.pdb:
           A                        AA
           B                        AB
           C                        AC
           D                        AD
           E                        AE
           F                        AF
           G                        AG
           H                        AH
           I                        AI
           J                        AJ
           K                        AK
           L                        AL
           M                        A1
           N                        A3
           O                        A4
           P                        A6
           Q                        BA
           R                        BB
           S                        BC
           T                        BD
           U                        BE
           V                        BF
           W                        BG
           X                        BH
           Y                        BI
           Z                        BJ
           a                        BK
           b                        BL
           c                        B1
           d                        B2
           e                        B3
           f                        B5
           g                         A
           h                         B
           i                         C
           j                         D
           k                         E
           l                         F
           m                         G
           n                         a
           o                         b
           p                         c
           q                         d
           r                         e
           s                         f
           t                         g

7wg5-pdb-bundle2.pdb:
           h                         h
           i                         i
           j                         j
           H                         H
           I                         I
           J                         J
           K                         K
           L                         L
           M                         M
           N                         N
           O                         O
           T                         T
