1BTE: Crystal Structure Of The Extracellular Domain Of The Type II Receptor
reference: Three-finger toxin fold for the extracellular ligand-binding domain of the type II activin receptor serine kinase., Greenwald J, Fischer WH, Vale WW, Choe S, Nat Struct Biol 1999 Jan;6(1):18-22. PMID: 9886286

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