Sequence alignment between 2v7n(A) and UniProt seq :

UniProt: 
PDB seq: DIVLTQSPATLSLSPGERATLSCRASQSVSSNYLAWYQQKPGQAPRLLIYDSSSRATGVPARFSGSGSGTDFTLTISSLEPEDFAVYYCHQYSDISPTFGQGTKVEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRG
         ---------+---------+-------+----+---------+-----------+---------+-------+---------+---------+------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---
                 10        20      30   40        50          70        80      90       100       110    140       150       160       170       180       190       200       210       220       230       240       250