>6yxl_HHH mol:protein length:221 ACPA F3 Fab fragment - heavy chain
QVQLVQSGAEVKKPGASVRVSCKASGFVTDYFIQWVRQAPGQGPEWMAWINPHNGETDYAPKLQDRVTVTCDTSTNTAFMELSRLTSDDTALYYCGRSGRTDARRAPVSYWGQGALVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEP