UniProt:
PDB seq: QLVETGVQSGGSLRLSCAASGFTLDNYNIGWFRQAPGKEYGGVSCISSDGSTYYADSVKGRFTISRDNAKNTVYLQMNNLKPEDTDVYYCAATKYGSSCPIRPYDYWGQGTQVT
--------------+---------+---------+---------+--------+---------+---------+---------+---------+---------+---------+
20 30 40 50 60 70 80 90 100 110 120