PR:Q13705-2	activin receptor type-2B isoform ActR-IIBtrunc (human)	activin receptor type-2B isoform ActR-IIB1 (human)|hACVR2B/iso:ActR-IIB1	NOT	capable_of	GO:0016362	activin receptor activity, type II			PMID:9916847	EXP	NCBITaxon:9606		UniProtKB:Q13705-2	20080301	PRO:CNA	
PR:Q13705-2	activin receptor type-2B isoform ActR-IIBtrunc (human)	activin receptor type-2B isoform ActR-IIB1 (human)|hACVR2B/iso:ActR-IIB1		has_agent	SO:0001587	stop_gained			PMID:9916847	EXP	NCBITaxon:9606		UniProtKB:Q13705-2	20080301	PRO:CNA