>2xwt_A mol:protein length:221 THYROID BLOCKING HUMAN AUTOANTIBODY K1-70 HEAVY CHAIN EVQLVQSGAEVKKPGQSLKISCKASGYSLTDNWIGWVRQKPGKGLEWMGIIYPGDSDTR YSPSFQGQVTISADKSINTAYLQWSSLKASDTAIYYCVGLDWNYNPLRYWGPGTLVTVS SASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQ SSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKS