    New chain ID            Original chain ID

28ln_1-pdb-bundle1.pdb:
           A                        B1
           B                        BA
           C                        BB
           D                        BC
           E                        BD
           F                        BE
           G                        BF
           H                        BG
           I                        BH
           J                        BI
           K                        BJ
           L                        BL
           M                        BM
           N                        BN
           O                        BO
           P                        BP
           Q                        BQ
           R                        BR
           S                        BS
           T                        BT
           U                        BU
           V                        BV
           W                        BW
           X                        BX
           Y                        BY
           Z                        BZ
           a                        Ba
           b                        Bb
           c                        Bc
           d                        Bd
           e                        Be
           f                        Bf
           g                        Bg
           h                        Bh
           i                        Bi
           j                        Bj
           k                        Bk
           l                        Bl
           m                        Bm
           n                        Bo
           o                        Bp
           p                        Br
           q                        Bs
           r                        Bt
           s                        Bu
           t                        Bv
           u                        AA
           v                        AB
           w                        AC
           x                        AD
           y                        AE
           z                        AF
           0                        AG
           1                        AH
           2                        AI
           3                        AJ
           4                        AK
           5                        AL
           6                        AM
           7                        AN
           8                        AO
           9                        AP
28ln_1-pdb-bundle2.pdb:
           A                        AQ
           B                        AR
           C                        AS
           D                        AT
           E                        AU
           F                        AV
           G                        AW
           H                        AX
           I                        AY
           J                        AZ
           K                        Aa
           L                        Ab
           M                        Ac
           N                        Ad
           O                        Ae
           P                        Af
           Q                        Ag
