    New chain ID            Original chain ID

4v8m-pdb-bundle1.pdb:
           A                        A0
           B                        A1
           C                        A2
           D                        A3
           E                        A4
           F                        A5
           G                        A6
           H                        A7
           I                        A8
           J                        A9
           K                        AC
           L                        AD
           M                        AE
           N                        AF
           O                        AG
           P                        AH
           Q                        AI
           R                        AJ
           S                        AK
           T                        AL
           U                        AM
           V                        AO
           W                        AP
           X                        AQ
           Y                        AR
           Z                        AS
           a                        AT
           b                        AU
           c                        AV
           d                        AW
           e                        AX
           f                        AY
           g                        AZ
           h                        BA

4v8m-pdb-bundle2.pdb:
           A                        BB
           B                        BC
           C                        BD
           D                        BE
           E                        BF
           F                        BG
           G                        BH
           H                        BI
           I                        BJ
           J                        BK
           K                        BL
           L                        BM
           M                        BN
           N                        BO
           O                        BP
           P                        BQ
           Q                        BR
           R                        BS
           S                        BT
           T                        BU
           U                        BV
           V                        BW
           W                        BX
           X                        BY
           Y                        BZ
           Z                        Ba
           a                        Bb
           b                        Bc
           c                        Bd
           d                        Be
           e                        Bf
           f                        Bg
           g                        Bh
           h                        Bi
           i                        Bj
           j                        Bk
           k                        Bl
           l                        Bm
           m                        Bn
           n                        Bo
           o                        Bp
           p                        Bq
           q                        Br
           r                        Bs
           s                        Bt
           t                        Bu

4v8m-pdb-bundle3.pdb:
           A                        Bv
           B                        Bw
           C                        Bx
           D                        By
           E                        AA
           F                        AB
