    New chain ID            Original chain ID

7dgq-pdb-bundle1.pdb:
           A                         3
           B                         1
           C                         9
           D                         7
           E                         4
           F                         5
           G                         6
           H                         2
           I                         8
           J                        C3
           K                        C1
           L                        A9
           M                        A7
           N                        B4
           O                        A5
           P                        A6
           Q                        C0
           R                        C2
           S                        B2
           T                        B3
           U                        A0
           V                        A8
           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                         N
           j                         O
           k                         P
           l                         Q
           m                         R
           n                         S
           o                         T
           p                         U
           q                         V
           r                         W
           s                         X
           t                         Y
           u                         Z
           v                         a
           w                         b
           x                         c
           y                         d
           z                         f
           0                         h
           1                         i
           2                         j
           3                         g
           4                         e
           5                         M
           6                         k
           7                         l
           8                         m
           9                         o

7dgq-pdb-bundle2.pdb:
           A                         p
           B                         q
           C                         r
           D                         s
           E                         t
           F                         u
           G                         v
           H                         w
           I                         x
           J                         y
           K                         z
           L                        A1
           M                        A2
           N                        A3
           O                        B7
           P                        A4
           Q                        B6
           R                        B5
