PR:P36896-3	activin receptor type-1B isoform 3 (human)	activin receptor type-1B isoform SKR2-3 (human)|hACVR1B/iso:3		located_in	GO:0005887	integral component of plasma membrane			PMID:11117535|PMID:8636304	IDA	NCBITaxon:9606		UniProtKB:P36896-3	20080301	PRO:CNA	
PR:P36896-3	activin receptor type-1B isoform 3 (human)	activin receptor type-1B isoform SKR2-3 (human)|hACVR1B/iso:3	NOT	capable_of	GO:0016361	activin receptor activity, type I			PMID:11117535|PMID:8636304	IDA	NCBITaxon:9606		UniProtKB:P36896-3	20080301	PRO:CNA