Sequence alignment between 6lx3(J) and UniProt seq P01591 (IGJ_HUMAN):

P01591 (IGJ_HUMAN): Immunoglobulin J chain from Homo sapiens
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150         
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------
UniProt: MKNHLLFWGVLAVFIKAVHVKAQEDERIVLVDNKCKCARITSRIIRSSEDPNEDIVERNIRIIVPLNNRENISDPTSPLRTRFVYHLSDLCKKCDPTEVELDNQIVTATQSNICDEDSATETCYTYDRNKCYTAVVPLVYGGETKMVETALTPDACYPD
         ..................................................................................................................XXXXXX.......................................
PDB seq: -------------------------ERIVLVDNKCKCARITSRIIRSSEDPNEDIVERNIRIIVPLNNRENISDPTSPLRTRFVYHLSDLCKKCDPTEVELDNQIVTATQSNIC------ETCYTYDRNKCYTAVVPLVYGGETKMVETALTPDACYPD
                                  -------+---------+---------+---------+---------+---------+---------+---------+---------+-      --+---------+---------+---------+------
                                        10        20        30        40        50        60        70        80        90       100       110       120       130