    New chain ID            Original chain ID

9nlf-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                         M
           f                        R1
           g                        R2

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