>21en_B mol:protein length:232 trivalent antibody fragment (triabody)
MQIQLVQSGPDLKKPGETVKISCKASGYPFTNYGMNWVKQAPGKGLKWIGLINTYTGEPTYADDFKGRFAFSLETSASTAYLQINNLKNEDTATYFCARPGTSPRYGYNGYFDVWGAGTTVTVSSDIVMTQSQKFMSTSVGDRVSITCKASQNVGTAVAWYQQKPGQSPKLLIYSASNRCTGVPDRFIGSGSGTDFTLTISNMQSEDLANYFCQQYSSYPFTFGGGTKLEIK