    New chain ID            Original chain ID

4v5f-pdb-bundle1.pdb:
           A                        AA
           B                        AB
           C                        AC
           D                        AD
           E                        AE
           F                        AF
           G                        AG
           H                        AH
           I                        AI
           J                        AJ
           K                        AK
           L                        AL
           M                        AM
           N                        AN
           O                        AO
           P                        AP
           Q                        AQ
           R                        AR
           S                        AS
           T                        AT
           U                        AU
           V                        AV
           W                        AW
           X                        AX
           Y                        AY
           Z                        B0
           a                        B1
           b                        B2
           c                        B3
           d                        B4
           e                        B5
           f                        B6
           g                        B7
           h                        B8
           i                        B9

4v5f-pdb-bundle2.pdb:
           A                        BA
           B                        BB
           C                        BC
           D                        BD
           E                        BE
           F                        BF
           G                        BG
           H                        BH
           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                        Bl
           a                        Bm

4v5f-pdb-bundle3.pdb:
           A                        CA
           B                        CB
           C                        CC
           D                        CD
           E                        CE
           F                        CF
           G                        CG
           H                        CH
           I                        CI
           J                        CJ
           K                        CK
           L                        CL
           M                        CM
           N                        CN
           O                        CO
           P                        CP
           Q                        CQ
           R                        CR
           S                        CS
           T                        CT
           U                        CU
           V                        CV
           W                        CW
           X                        CX
           Y                        CY
           Z                        D0
           a                        D1
           b                        D2
           c                        D3
           d                        D4
           e                        D5
           f                        D6
           g                        D7
           h                        D8
           i                        D9

4v5f-pdb-bundle4.pdb:
           A                        DA
           B                        DB
           C                        DC
           D                        DD
           E                        DE
           F                        DF
           G                        DG
           H                        DH
           I                        DJ
           J                        DK
           K                        DL
           L                        DM
           M                        DN
           N                        DO
           O                        DP
           P                        DQ
           Q                        DR
           R                        DS
           S                        DT
           T                        DU
           U                        DV
           V                        DW
           W                        DX
           X                        DY
           Y                        DZ
           Z                        Dl
           a                        Dm
