    New chain ID            Original chain ID

9l5r-pdb-bundle1.pdb:
           A                         2
           B                         5
           C                         6
           D                         A
           E                         B
           F                         C
           G                         D
           H                         E
           I                         F
           J                         I
           K                         J
           L                         L
           M                         K
           N                         q
           O                         t
           P                         r
           Q                         s
           R                         N
           S                         S
           T                         T
           U                         U
           V                         M
           W                         0
           X                         R
           Y                         W
           Z                         P
           a                         Y
           b                         a
           c                         b
           d                         c
           e                         d
           f                         e
           g                         f
           h                         g
           i                         h
           j                         i
           k                         j
           l                         k
           m                         l
           n                         m
           o                         o
           p                         p
           q                         u
           r                        CY
           s                        Cb

9l5r-pdb-bundle2.pdb:
           A                        Cc
           B                         7
           C                        Ci
           D                         H
