    New chain ID            Original chain ID

4v9d-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                        AX
           X                        AY
           Y                        BA
           Z                        BB
           a                        BC
           b                        BD
           c                        BE
           d                        BF
           e                        BG
           f                        BH
           g                        BI
           h                        BJ

4v9d-pdb-bundle2.pdb:
           A                        BK
           B                        BL
           C                        BM
           D                        BN
           E                        BO
           F                        BP
           G                        BQ
           H                        BR
           I                        BS
           J                        BT
           K                        BU
           L                        BV
           M                        BX
           N                        CA
           O                        CB
           P                        CC
           Q                        CD
           R                        CE
           S                        CF
           T                        CG
           U                        CH
           V                        CI
           W                        CJ
           X                        CK
           Y                        CL
           Z                        CM
           a                        CN
           b                        CO
           c                        CP
           d                        CQ
           e                        CR
           f                        CS
           g                        CT
           h                        CU
           i                        CV
           j                        CW
           k                        CX
           l                        CY
           m                        CZ
           n                        C0

4v9d-pdb-bundle3.pdb:
           A                        C1
           B                        C2
           C                        C3
           D                        C4
           E                        DA
           F                        DB
           G                        DC
           H                        DD
           I                        DE
           J                        DF
           K                        DG
           L                        DH
           M                        DI
           N                        DJ
           O                        DK
           P                        DL
           Q                        DM
           R                        DN
           S                        DO
           T                        DP
           U                        DQ
           V                        DR
           W                        DS
           X                        DT
           Y                        DU
           Z                        DV
           a                        DW
           b                        DX
           c                        DY
           d                        DZ
           e                        D0
           f                        D1
           g                        D2
           h                        D3
           i                        D4
