PR:000025929	TGF-beta 1 isoform 1 mature form (rat)	PRO_0000033771|rTGFB1/iso:1/mature|UniProtKB:P17246-1, 279-390		located_in	GO:0031012	extracellular matrix			PMID:11907708	IDA	NCBITaxon:10116		UniProtKB:P17246-1	20080301	PRO:CNA