    New chain ID            Original chain ID

6qx9-pdb-bundle1.pdb:
           A                         1
           B                         6
           C                        5O
           D                        B4
           E                        13
           F                        4B
           G                        5e
           H                         I
           I                        1K
           J                        4C
           K                        41
           L                         R
           M                        1f
           N                        4e
           O                        66
           P                         X
           Q                        22
           R                         5
           S                        67
           T                        62
           U                        2B
           V                        53
           W                        A2
           X                        B2
           Y                        2f
           Z                        5C
           a                        5X
           b                        11
           c                        42
           d                        1b
           e                        B5
           f                        1A
           g                         S
           h                        5f
           i                        5J
           j                        51
           k                        4D
           l                        63
           m                        2b
           n                         2
           o                        4f
           p                        B3
           q                        1g
           r                        23
           s                        5b
           t                        68
           u                        43
           v                        1e
           w                        5A
           x                        A3
           y                         U
           z                        2g
           0                        5D
           1                        52
           2                        12
           3                        64

6qx9-pdb-bundle2.pdb:
           A                        2e
           B                        BP
           C                        1C
           D                        5g
           E                         K
           F                        4b
           G                        4A
           H                        21
           I                        4g
           J                         4
           K                        2A
           L                        A1
           M                        65
           N                        5B
           O                        B1
