    New chain ID            Original chain ID

9nle-pdb-bundle1.pdb:
           A                         1
           B                        13
           C                        14
           D                        15
           E                        16
           F                        17
           G                        18
           H                        19
           I                         2
           J                        20
           K                        21
           L                        22
           M                        23
           N                        24
           O                        25
           P                        27
           Q                        28
           R                        29
           S                         3
           T                        30
           U                        31
           V                        32
           W                        33
           X                        34
           Y                        35
           Z                        36
           a                         4
           b                         5
           c                         6
           d                         9
           e                         E
           f                         M
           g                        R1
           h                        R2

9nle-pdb-bundle2.pdb:
           A                        R3
           B                         T
           C                        sb
           D                        sc
           E                        sd
           F                        se
           G                        sf
           H                        sg
           I                        sh
           J                        si
           K                        sj
           L                        sk
           M                        sl
           N                        sm
           O                        sn
           P                        so
           Q                        sp
           R                        sq
           S                        sr
           T                        ss
           U                        st
           V                        su
