    New chain ID            Original chain ID

9i0y-pdb-bundle1.pdb:
           A                         0
           B                         1
           C                         2
           D                         3
           E                         4
           F                         5
           G                         6
           H                         7
           I                         8
           J                         9
           K                        AA
           L                         P
           M                         Q
           N                         R
           O                         S
           P                         T
           Q                         U
           R                         V
           S                         W
           T                         X
           U                         Y
           V                         Z
           W                         a
           X                         b
           Y                         c
           Z                         d
           a                         e
           b                         f
           c                         g
           d                         h
           e                         i
           f                         j
           g                         k
           h                         l
           i                         m
           j                         n
           k                         o
           l                         p
           m                         q
           n                         r
           o                         s
           p                         t
           q                         u
           r                         v
           s                         w
           t                         x
           u                         y
           v                         z
