>5y9c_H mol:protein length:216 heavy chain of Fab fragment of antibody A12A3EVQLQQSGAELVRPGALVKLSCKASGFNIKDYYMHWVKQRPEQGLEWIGWIDPENGKTIYDPRFRGKASITADTSSNTAYLQLSSLTSEDAAVYYCATSNYRYDRSFDYWGQGTTLTVSAKTTPPSVYPLAPGCGDTTGSSVTSGCLVKGYFPEPVTVTWNSGSLSSSVHTFPALLQSGLYTMSSSVTVPSSTWPSQTVTCSVAHPASSTTVDKKL