    New chain ID            Original chain ID

4v9n-pdb-bundle1.pdb:
           A                        AA
           B                        AV
           C                        AW
           D                        AY
           E                        AB
           F                        AC
           G                        AD
           H                        AE
           I                        AF
           J                        AG
           K                        AH
           L                        AI
           M                        AJ
           N                        AK
           O                        AL
           P                        AM
           Q                        AN
           R                        AO
           S                        AP
           T                        AQ
           U                        AR
           V                        AS
           W                        AT
           X                        AU

4v9n-pdb-bundle2.pdb:
           A                        BA
           B                        BB
           C                        BD
           D                        BE
           E                        BF
           F                        BG
           G                        BH
           H                        BI
           I                        BK
           J                        BN
           K                        BO
           L                        BP
           M                        BQ
           N                        BR
           O                        BS
           P                        BT
           Q                        BU
           R                        BV
           S                        BW
           T                        BX
           U                        BY
           V                        BZ
           W                        B0
           X                        B1
           Y                        B2
           Z                        B3
           a                        B4
           b                        B5
           c                        B6
           d                        B7
           e                        B8

4v9n-pdb-bundle3.pdb:
           A                        CA
           B                        CV
           C                        CW
           D                        CY
           E                        CB
           F                        CC
           G                        CD
           H                        CE
           I                        CF
           J                        CG
           K                        CH
           L                        CI
           M                        CJ
           N                        CK
           O                        CL
           P                        CM
           Q                        CN
           R                        CO
           S                        CP
           T                        CQ
           U                        CR
           V                        CS
           W                        CT
           X                        CU

4v9n-pdb-bundle4.pdb:
           A                        DA
           B                        DB
           C                        DD
           D                        DE
           E                        DF
           F                        DG
           G                        DH
           H                        DI
           I                        DK
           J                        DN
           K                        DO
           L                        DP
           M                        DQ
           N                        DR
           O                        DS
           P                        DT
           Q                        DU
           R                        DV
           S                        DW
           T                        DX
           U                        DY
           V                        DZ
           W                        D0
           X                        D1
           Y                        D2
           Z                        D3
           a                        D4
           b                        D5
           c                        D6
           d                        D7
           e                        D8
