UniProt:
PDB seq: QVQLVESGGGLVRPGGSLRLSCVDSERTSYPMGWFRRAPGKEREFVASITWSGIDPTYADSVADRFTTSRDVANNTLYLQMNSLKHEDTAVYYCAARAPVDYDYWGQGTQVTVSSAAA
-------+---------+---------+---------+---------+---------+---------+---------+---------+---------+------------+-------
10 20 30 40 50 60 70 80 90 100 120