    New chain ID            Original chain ID

9q2o_1-pdb-bundle1.pdb:
           A                         R
           B                         W
           C                        AA
           D                        BB
           E                        CC
           F                        EE
           G                        GG
           H                        HH
           I                        II
           J                        JJ
           K                        LL
           L                        NN
           M                        OO
           N                        VV
           O                        WW
           P                        XX
           Q                        YY
           R                        aa
           S                        bb
           T                        ee
           U                        DD
           V                        FF
           W                        KK
           X                        MM
           Y                        PP
           Z                        QQ
           a                        RR
           b                        SS
           c                        TT
           d                        UU
           e                        ZZ
           f                        cc
           g                        dd
           h                        ff
           i                        gg
           j                         A
           k                         B
           l                         C
           m                         D
           n                         E
           o                         F
           p                         G
           q                         H
           r                         I
           s                         J
           t                         L
           u                         M
           v                         N
           w                         O
           x                         P
           y                         Q
           z                         S
           0                         T
           1                         U
           2                         V
           3                         X
           4                         Y
           5                         Z
           6                         a
           7                         b
           8                         c
           9                         d
9q2o_1-pdb-bundle2.pdb:
           A                         e
           B                         f
           C                         g
           D                         h
           E                         i
           F                         j
           G                         k
           H                         l
           I                         m
           J                         o
           K                         p
           L                         r
           M                         s
           N                         t
