PR:P36896-2	activin receptor type-1B isoform 2 (human)	activin receptor type-1B isoform SKR2-2 (human)|hACVR1B/iso:2		located_in	GO:0005887	integral component of plasma membrane			PMID:11117535|PMID:8636304	IDA	NCBITaxon:9606		UniProtKB:P36896-2	20080301	PRO:CNA	
PR:P36896-2	activin receptor type-1B isoform 2 (human)	activin receptor type-1B isoform SKR2-2 (human)|hACVR1B/iso:2	NOT	capable_of	GO:0016361	activin receptor activity, type I			PMID:11117535|PMID:8636304	IDA	NCBITaxon:9606		UniProtKB:P36896-2	20080301	PRO:CNA