>5NGV_1|Chain A|Activin receptor type-2B|Homo sapiens (9606)
GPKAMAETRECIYYNANWELERTNQSGLERCEGEQDKRLHCYASWRNSSGTIELVKKGCWLDDFNCYDRQECVATEENPQVYFCCCEGNFCNERFTHLP
>5NGV_2|Chain B[auth H]|anti-human ActRIIB mAb BYM338 heavy-chain|Homo sapiens (9606)
QVQLVQSGAEVKKPGASVKVSCKASGYTFTSSYINWVRQAPGQGLEWMGTINPVSGSTSYAQKFQGRVTMTRDTSISTAYMELSRLRSDDTAVYYCARGGWFDYWGQGTLVTVSSHHHHHH
>5NGV_3|Chain C[auth L]|anti-human ActRIIB mAb BYM338 light-chain|Homo sapiens (9606)
QSALTQPASVSGSPGQSITISCTGTSSDVGSYNYVNWYQQHPGKAPKLMIYGVSKRPSGVSNRFSGSKSGNTASLTISGLQAEDEADYYCGTFAGGSYYGVFGGGTKLTVLWSHPQFEK