    New chain ID            Original chain ID

8ro1-pdb-bundle1.pdb:
           A                         2
           B                         5
           C                         6
           D                         A
           E                         C
           F                         D
           G                        DX
           H                         E
           I                         I
           J                        IN
           K                         J
           L                         K
           M                         L
           N                        L1
           O                        L2
           P                         M
           Q                         N
           R                         O
           S                         P
           T                        PX
           U                         Q
           V                         R
           W                         S
           X                         T
           Y                        TF

8ro1-pdb-bundle2.pdb:
           W                         W
           X                         X
           Z                         Z
           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                         t
           y                         y
