Sequence alignment between 4j4p(H) and UniProt seq :

UniProt: 
PDB seq: QVQLQQSGPGLVKPSQTLSLTCGISGDSVSSNSAAWNWLRQSPSRGLEWLGRTYYRSKWYNDYAVSMKSRITINPDTSRNQFSLQLNSVTPEDTAVYYCARDGEISYDYYYYGMDVWGRGTLVTVSSASTKGPSVFPLAPSGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSC
         ----------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---+---------+---------+---------+---------+---------+---------+---------+---------
                  30        40        50        60        70        80        90       100       110       120       130       140       150       160 170       180       190       200       210       220       230       240