    New chain ID            Original chain ID

9v25-pdb-bundle1.pdb:
           A                        lA
           B                        lB
           C                        lC
           D                        lD
           E                        lE
           F                        lF
           G                        lG
           H                        lH
           I                        lI
           J                        lJ
           K                        lK
           L                        lL
           M                        lM
           N                        lN
           O                        lO
           P                        lP
           Q                        lQ

9v25-pdb-bundle2.pdb:
           A                        lR
           B                        lS
           C                        lT
           D                        lU
           E                        lV
           F                        lW
           G                        lX
           H                        lY
           I                        lZ
           J                        la
           K                        lb
           L                        lc
           M                        ld
           N                        le
           O                        lf
           P                        lg
           Q                        lh
           R                        li
           S                        lj
           T                        lk
           U                        ll
           V                        lm
           W                        ln
           X                        lo
           Y                        lp
           Z                        lq
           a                        sH
           b                        sI
           c                        sJ
