UniProt:
PDB seq: GSLRLSCAASGYTYSPYCMGWFRQAPGKAREGVATVDLDGSTIYADSVKGRFTISQDNAKNTLYLQMNSLKPEDTAMYYCASRTRAGVTCGLNWAIFSYWGQGTQVTVSS
---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+
450 460 470 480 490 500 510 520 530 540 550