    New chain ID            Original chain ID

9l5t-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                         Y
           O                         q
           P                         t
           Q                         r
           R                         s
           S                         N
           T                         S
           U                         T
           V                         M
           W                         0
           X                         R
           Y                         W
           Z                         P
           a                         j
           b                         k
           c                         l
           d                         m
           e                         o
           f                         p
           g                         u
           h                         1
           i                         z
           j                         V
           k                         Z
           l                        CY
           m                        Ck
           n                        Cb
           o                         8
           p                        Cc
