    New chain ID            Original chain ID

6vwn-pdb-bundle1.pdb:
           A                         3
           B                         5
           C                         A
           D                         B
           E                         C
           F                         D
           G                         E
           H                         F
           I                         G
           J                         I
           K                         J
           L                         K
           M                         L
           N                         M
           O                         N
           P                         O
           Q                         P
           R                         Q
           S                         R
           T                         S
           U                         T
           V                         U
           W                         V
           X                         W
           Y                         X
           Z                         Y
           a                         Z
           b                        AA
           c                        AB
           d                        AC
           e                         2
           f                         a
           g                         b
           h                         c
           i                         d
           j                         e
           k                         f
           l                         g
           m                         h
           n                         i
           o                         j

6vwn-pdb-bundle2.pdb:
           k                         k
           l                         l
           m                         m
           n                         n
           o                         o
           p                         p
           q                         q
           r                         r
           s                         s
           t                         t
           1                         1
           4                         4
