    New chain ID            Original chain ID

9yps-pdb-bundle1.pdb:
           5                         5
           7                         7
           8                         8

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

9yps-pdb-bundle3.pdb:
           A                        GG
           B                        HH
           C                        II
           D                        JJ
           E                        KK
           F                        LL
           G                        MM
           H                        NN
           I                        OO
           J                        PP
           K                        QQ
           L                        RR
           M                        SS
           N                        TT
           O                        UU
           P                        VV
           Q                        WW
           R                        XX
           S                        YY
           T                        ZZ
           U                        aa
           V                        bb
           W                        cc
           X                        dd
           Y                        ee
           Z                        ff
           a                        gg
           b                        10
           c                        12
           d                        13
           e                         j
           f                        11
           g                        jj
