>4FAO_1|Chains A, B, EA[auth G], FA[auth H], G[auth M], H[auth N], M[auth S], N[auth T], S[auth a], T[auth b], Y[auth g], Z[auth h]|Growth/differentiation factor 2|Homo sapiens (9606)
SAGAGSHCQKTSLRVNFEDIGWDSWIIAPKEYEAYECKGGCFFPLADDVTPTKHAIVQTLVHLKFPTKVGKACCVPTKLSPISVLYKDDMGVPTLKYHYEGMSVAECGCR
>4FAO_2|Chains AA[auth C], BA[auth D], C[auth I], D[auth J], GA[auth O], HA[auth P], I[auth U], J[auth V], O[auth c], P[auth d], U[auth i], V[auth j]|Serine/threonine-protein kinase receptor R3|Homo sapiens (9606)
GADPVKPSRGPLVTCTCESPHCKGPTCRGAWCTVVLVREEGRHPQEHRGCGNLHRELCRGRPTEFVNHYCCDSHLCNHNVSLVLEATQPPSEQPGTDGQSGDDDDK
>4FAO_3|Chains CA[auth E], DA[auth F], E[auth K], F[auth L], IA[auth Q], JA[auth R], K[auth W], L[auth X], Q[auth e], R[auth f], W[auth k], X[auth l]|Activin receptor type-2B|Homo sapiens (9606)
GASGRGEAETRECIYYNANWELERTNQSGLERCEGEQDKRLHCYASWRNSSGTIELVKKGCWLDDFNCYDRQECVATEENPQVYFCCCEGNFCNERFTHLPEAGGPEVTYEPPPTAPTGDDDDK