>5nh3_I mol:protein length:121  anti-human ActRIIB mAb BYM338 Fv heavy-chain
QVQLVQSGAEVKKPGASVKVSCKASGYTFTSSYINWVRQAPGQGLEWMGTINPVSGSTS
YAQKFQGRVTMTRDTSISTAYMELSRLRSDDTAVYYCARGGWFDYWGQGTLVTVSSHHH
HHH