    New chain ID            Original chain ID

8cd1-pdb-bundle1.pdb:
           A                         2
           B                         4
           C                         5
           D                         6
           E                         A
           F                         B
           G                         C
           H                         D
           I                        Dt
           J                         E
           K                         F
           L                         G
           M                         H
           N                         J
           O                         K
           P                         L
           Q                        Le
           R                         M
           S                         N
           T                         O
           U                         P
           V                         Q
           W                         R
           X                         S
           Y                         T
           Z                         U
           a                         V
           b                         W
           c                         X
           d                         Y
           e                         Z

8cd1-pdb-bundle2.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                         t
           u                         u
           v                         v
