passages.id: split_8_test_3056_passage
passages.type: progene_text
passages.text: Although inhibin A and B binding was 20 - fold lower compared with activin binding to either type II receptor alone , the mixture of either type II receptor with soluble TGF-beta type III receptor ( TbetaRIII ; betaglycan ) - Fc reconstituted a soluble high affinity inhibin receptor .