Sequence alignment between 1aif(L) and UniProt seq P01837 (IGKC_MOUSE):

P01837 (IGKC_MOUSE): Immunoglobulin kappa constant from Mus musculus
                                                                                                                             10        20        30        40        50        60        70        80        90       100       
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-------
UniProt: ------------------------------------------------------------------------------------------------------------RADAAPTVSIFPPSSEQLTSGGASVVCFLNNFYPKDINVKWKIDGSERQNGVLNSWTDQDSKDSTYSMSSTLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNRNEC
PDB seq: DIQLTQSPAFMAASPGEKVTITCSVSSSISSSNLHWYQQKSETSPKPWIYGTSNLASGVPVRFSGSGSGTSYSLTISSMEAEDAATYYCQQWNSYPYTFGGGTKLEIKRADAAPTVSIFPPSSEQLTSGGASVVCFLNNFYPKDINVKWKIDGSERQNGVLNSWTDQDSKDSTYSMSSTLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNRNEC
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-----
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210