Sequence alignment between 9n4f(L) and UniProt seq :

UniProt: 
PDB seq: SALTQPRSVSGSPGQSVTISCTGTRSDVGGYNYVSWYQQHPGKAPKVIIYDVKKRPSGVPDRFSGSKSGNTASLTISGLQAEDEADYYCSAFAGSHTLFGGGTKVTVL
         -----------------+------------+---------+---------+---------+---------+---------+---------+---------+-------
                         20           30        40        50        60        70        80        90       100