    New chain ID            Original chain ID

6i7v-pdb-bundle1.pdb:
           A                        AA
           B                        BA

6i7v-pdb-bundle2.pdb:
           A                        DA

6i7v-pdb-bundle3.pdb:
           A                        CA
           B                        DB

6i7v-pdb-bundle4.pdb:
           A                        CB
           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                        BB
           W                        BC
           X                        BD
           Y                        BE
           Z                        BF
           a                        BG
           b                        BH
           c                        BI
           d                        BJ
           e                        BK
           f                        BL
           g                        BM
           h                        BN
           i                        BO
           j                        BP
           k                        BQ
           l                        BR
           m                        BS
           n                        BT
           o                        BU
           p                        CC
           q                        CD
           r                        CE
           s                        CF
           t                        CG
           u                        CH

6i7v-pdb-bundle5.pdb:
           A                        CJ
           B                        CK
           C                        CL
           D                        CM
           E                        CN
           F                        CO
           G                        CP
           H                        CQ
           I                        CR
           J                        CS
           K                        CT
           L                        CU
           M                        CV
           N                        CW
           O                        CX
           P                        CY
           Q                        CZ
           R                        C0
           S                        C1
           T                        C2
           U                        C3
           V                        C4
           W                        C5
           X                        DC
           Y                        DD
           Z                        DE
           a                        DF
           b                        DG
           c                        DH
           d                        DJ
           e                        DK
           f                        DL
           g                        DM
           h                        DN
           i                        DO
           j                        DP
           k                        DQ
           l                        DR
           m                        DS
           n                        DT
           o                        DU
           p                        DV
           q                        DW
           r                        DX
           s                        DY
           t                        DZ
           u                        D0
           v                        D1
           w                        D2
           x                        D3
           y                        D4
           z                        D5
           0                        D7
