>5ngv_H mol:protein length:121  anti-human ActRIIB mAb BYM338 heavy-chain
QVQLVQSGAEVKKPGASVKVSCKASGYTFTSSYINWVRQAPGQGLEWMGTINPVSGSTS
YAQKFQGRVTMTRDTSISTAYMELSRLRSDDTAVYYCARGGWFDYWGQGTLVTVSSHHH
HHH