    New chain ID            Original chain ID

4v8y-pdb-bundle1.pdb:
           A                        A0
           B                        A1
           C                        A2
           D                        A3
           E                        A4
           F                        A5
           G                        A6
           H                        A7
           I                        AA
           J                        AB
           K                        AC
           L                        AD
           M                        AE
           N                        AF
           O                        AG
           P                        AH
           Q                        AI
           R                        AJ
           S                        AK
           T                        AL
           U                        AM
           V                        AN
           W                        AO
           X                        AP
           Y                        AQ
           Z                        AR
           a                        AS
           b                        AT
           c                        AU
           d                        AV
           e                        AW
           f                        AX
           g                        AY
           h                        AZ
           i                        BA
           j                        BB
           k                        BC
           l                        BD
           m                        BE
           n                        BF
           o                        BG
           p                        BH
           q                        BI
           r                        BJ
           s                        BK
           t                        BL
           u                        BM
           v                        BN
           w                        BO
           x                        BP
           y                        BQ
           z                        BR
           0                        BS
           1                        BT
           2                        BU
           3                        BV
           4                        BW
           5                        BX
           6                        BY
           7                        BZ
           8                        Ba
           9                        Bb

4v8y-pdb-bundle2.pdb:
           A                        Bc
           B                        Bd
           C                        Be
           D                        Bf
           E                        Bg
           F                        Bh
           G                        Bi
           H                        Bj
           I                        Bk
           J                        Bl
           K                        Bm
           L                        Bn
           M                        Bo
           N                        Bq
           O                        Br
           P                        Bs
           Q                        By
           R                        B2

4v8y-pdb-bundle3.pdb:
           A                        B5
           B                        B7
           C                        B8
           D                        CL
           E                        CN
           F                        CP
           G                        CW
