    New chain ID            Original chain ID

9fq7-pdb-bundle1.pdb:
           A                        2M
           B                        2N
           C                        2O
           D                        2P
           E                        2Q
           F                        2R
           G                        2S
           H                        2T
           I                        2U
           J                        2V
           K                        2m
           L                        2n
           M                        2o
           N                        2p
           O                        2q
           P                        2r
           Q                        2s
           R                        2t
           S                        2u
           T                        2v
           U                        30
           V                        31
           W                        3A
           X                        3B
           Y                        3C
           Z                        3D
           a                        3E
           b                        3F
           c                        3G
           d                        3H
           e                        3I
           f                        3J
           g                        3K
           h                        3L
           i                        3a
           j                        3b
           k                        3c
           l                        3d
           m                        3e
           n                        3f
           o                        3g
           p                        3h
           q                        3i
           r                        3j
           s                        3k
           t                        3l
           u                        40
           v                        41
           w                        4A
           x                        4B
           y                        4C
           z                        4D
           0                        4E
           1                        4F
           2                        4G
           3                        4H
           4                        4I
           5                        4J
           6                        4K
           7                        4L
           8                        4M
           9                        4N

9fq7-pdb-bundle2.pdb:
           A                        4O
           B                        4P
           C                        4Q
           D                        4R
           E                        4S
           F                        4T
           G                        4U
           H                        4V
           I                        4W
           J                        4X
           K                        4Y
           L                        4Z
           M                        4a
           N                        4b
           O                        4c
           P                        4d
           Q                        4e
           R                        4f
           S                        4g
           T                        4h
           U                        4i
           V                        4j
           W                        4k
           X                        4l
           Y                        4m
           Z                        4n
           a                        4o
           b                        4p
           c                        4q
           d                        4r
           e                        4s
           f                        4t
           g                        4u
           h                        4v
           i                        4w
           j                        4x
           k                        4y
           l                        4z
