    New chain ID            Original chain ID

9ufe-pdb-bundle1.pdb:
           A                        EA
           B                        FA
           C                        DA
           D                        CA
           E                        AA
           F                        BA
           G                        EB
           H                        FB
           I                        DB
           J                        CB
           K                        AB
           L                        BB
           M                        EC
           N                        FC
           O                        DC
           P                        CC
           Q                        AC
           R                        BC
           S                        aA
           T                        aB
           U                        aC
           V                        aD
           W                        aE
           X                        bA
           Y                        bB
           Z                        bC
           a                        cA
           b                        dA
           c                        eA
           d                        eB
           e                        fB
           f                        fC
           g                        fD
           h                        fE
           i                        fF
           j                        aF
           k                        aG
           l                        aH
           m                        aI
           n                        aJ
           o                        bD
           p                        bE
           q                        bF
           r                        cB
           s                        dB
           t                        eC
           u                        eD
           v                        fG
           w                        fH
           x                        fI
           y                        fJ
           z                        fK
           0                        aK
           1                        aL
           2                        aM
           3                        aN
           4                        aO
           5                        bG
           6                        bH
           7                        bI
           8                        cC
           9                        dC

9ufe-pdb-bundle2.pdb:
           A                        eE
           B                        eF
           C                        fL
           D                        fM
           E                        fN
           F                        fO
           G                        fP
