    New chain ID            Original chain ID

7ajf-pdb-bundle1.pdb:
           A                         A
           B                         B
           C                         C
           D                         D
           E                         E
           F                         F
           G                         G
           H                         H
           I                         I
           J                         J
           K                         K
           L                         L
           M                         M
           N                         N
           O                         O
           P                         P
           Q                         Q
           R                         R
           S                         S
           T                         a
           U                         b
           V                         d
           W                         e
           X                         f
           Y                         g
           Z                         h
           a                         j
           b                         k
           c                        AA
           d                        AB
           e                        AC
           f                        AD
           g                        AE
           h                        AF
           i                        AG
           j                        AH
           k                        AI
           l                        AJ
           m                        AK
           n                        AL
           o                        AM
           p                        AN
           q                        AO
           r                        AP
           s                        AQ
           t                        AR
           u                        AS
           v                        Aa
           w                        Ab
           x                        Ad
           y                        Ae
           z                        Af
           0                        Ag
           1                        Ah
           2                        Aj
           3                        Ak
           4                        A8
           5                         8
