    New chain ID            Original chain ID

9k5e-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                        AZ
           a                        Aa
           b                        Ab
           c                        Ac
           d                        Ad
           e                        Ae
           f                        Af
           g                        Au
           h                        Aw
           i                        BA
           j                        BB
           k                        BC
           l                        BD
           m                        BE

9k5e-pdb-bundle2.pdb:
           A                        BF
           B                        BG
           C                        BH
           D                        BI
           E                        BJ
           F                        BK
           G                        BL
           H                        BM
           I                        BN
           J                        BO
           K                        BP
           L                        BQ
           M                        BR
           N                        BS
           O                        BT
           P                        BU
           Q                        BV
           R                        BW
           S                        BX
           T                        BY
           U                        BZ
           V                        Ba
           W                        Bb
           X                        Bc
           Y                        Bd
           Z                        Be
           a                        Bf
           b                        Bu
           c                        Bw
