Sequence alignment between 4f15(B) and UniProt seq :

UniProt: 
PDB seq: VKLQESGAVVQPGGSLRLSCAASGFTGSDYDMSWIRQAPGKGLEWVSGILGGSERSYYRDSVKGRSTISRDNSRKTLYLEMNSLRAEDTAVYYCARHSWGGWGQGTTVTVSSASTKGPSVFPLAPSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSSVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKSC
         --------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-----------+---------+------+---------+---------+---------+---------+---------+---------+---------+---------+
                10        20        30        40        50        60        70        80        90       100         120       130    140       150       160       170       180       190       200       210       220