    New chain ID            Original chain ID

8u11-pdb-bundle1.pdb:
           A                         1
           B                         2
           C                         3
           D                         4
           E                         5
           F                         6
           G                         7
           H                         8
           I                         9
           J                        10
           K                        11
           L                        12
           M                        13
           N                        14
           O                        15
           P                        16
           Q                        17
           R                        18
           S                        19
           T                        20
           U                        21
           V                        22
           W                        23
           X                        24
           Y                         a
           Z                         y
           a                         b
           b                         m
           c                         c
           d                         n
           e                         d
           f                         o
           g                         e
           h                         p
           i                         l
           j                         q
           k                         f
           l                         r
           m                         k
           n                         s
           o                         i
           p                         t
           q                         j
           r                         u
           s                         h

8u11-pdb-bundle2.pdb:
           v                         v
           g                         g
           x                         x
           E                         E
           C                         C
           A                         A
           G                         G
           I                         I
           D                         D
           B                         B
           F                         F
           H                         H
           J                         J
