    New chain ID            Original chain ID

8fkq-pdb-bundle1.pdb:
           A                        L1
           B                        L2
           C                        L3
           D                        L6
           E                        L7
           F                        L8
           G                        L9
           H                        LA
           I                        LB
           J                        LC
           K                        LE
           L                        LG
           M                        LH
           N                        LI
           O                        LK
           P                        LL
           Q                        LN
           R                        LQ
           S                        LS
           T                        LT
           U                        LU
           V                        LW
           W                        NE
           X                        NG
           Y                        NN
           Z                        SA
           a                        SC
           b                        SD
           c                        SE
           d                        SH
           e                        SI
           f                        SJ
           g                        SK
           h                        SL
           i                        SM
           j                        SN
           k                        SO
           l                        SR
           m                        SS
           n                        ST
           o                        SV
           p                        SW
           q                        SZ
