    New chain ID            Original chain ID

6r5q-pdb-bundle1.pdb:
           3                         3
           1                         1
           2                         2
           5                         5
           7                         7
           8                         8
           A                         A
           B                         B
           C                         C
           D                         D
           E                         E
           F                         F

6r5q-pdb-bundle2.pdb:
           A                         G
           B                         H
           C                         I
           D                         J
           E                         L
           F                         M
           G                         N
           H                         O
           I                         P
           J                         Q
           K                         R
           L                         S
           M                         T
           N                         U
           O                         V
           P                         W
           Q                         X
           R                         Y
           S                         Z
           T                         a
           U                         b
           V                         c
           W                         d
           X                         e
           Y                         f
           Z                         g
           a                         h
           b                         i
           c                         j
           d                         k
           e                         l
           f                         m
           g                         n
           h                         o
           i                         p
           j                         r
           k                         s
           l                         t
           m                         K
           n                         q
           o                         u
           p                         v
           q                         w
           r                         x
           s                         y
           t                         z
           u                        BB
           v                        CC
           w                        DD
           x                        SS
           y                        EE
           z                        RR
           0                        QQ
           1                        MM

6r5q-pdb-bundle3.pdb:
           A                        WW
           B                        UU
           C                        KK
           D                        II
           E                        PP
           F                        GG
           G                        HH
           H                        TT
           I                        VV
           J                        NN
           K                        OO
           L                        LL
           M                        JJ
           N                        FF
           O                         9
           P                         4
           Q                         0
           R                         6
           S                        AA
