PR:P36896-1	activin receptor type-1B isoform 1 (human)	activin receptor type-1B isoform SKR2-1 (human)|hACVR1B/iso:1		participates_in	GO:0007178	transmembrane receptor protein serine/threonine kinase signaling pathway			PMID:11069203	IDA	NCBITaxon:9606		UniProtKB:P36896-1	20080301	PRO:CNA