PR:000000071	activin receptor type-2B	activin receptor type IIB|ACTR-IIB|ACVR2B		capable_of	GO:0048185	activin binding			PIRSF:PIRSF500456	ISS		PIRSF:PIRSF500456|UniProtKB:P27040|UniProtKB:Q13705|UniProtKB:Q3KQI1	PIRSF:PIRSF500456|UniProtKB:P27040|UniProtKB:Q13705|UniProtKB:Q3KQI1	20080301	PRO:CNA	
PR:000000071	activin receptor type-2B	activin receptor type IIB|ACTR-IIB|ACVR2B		participates_in	GO:0032924	activin receptor signaling pathway			PIRSF:PIRSF500456	ISS		PIRSF:PIRSF500456|UniProtKB:P27040|UniProtKB:Q13705|UniProtKB:Q3KQI1	PIRSF:PIRSF500456|UniProtKB:P27040|UniProtKB:Q13705|UniProtKB:Q3KQI1	20080301	PRO:CNA