Sequence alignment between 1uj3(B) and UniProt seq :

UniProt: 
PDB seq: QVQLLESGAVLARPGTSVKISCKASGFNIKDYYMHWVKQRPGQGLEWIGGNDPANGHSMYDPKFQGRVTITADTSTSTVFMELSSLRSEDTAVYYCARDSGYAMDYWGQGTLVTVSSASTKGPSVFPLAPCSRSTSESTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTKTYTCNVDHKPSNTKVDKRVES
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+-------
                310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490       500       510