PR:000036546 lefty 1 isoform 1 cleaved 1 (human) hLEFTY1/iso:1/Clv:1|PRO_0000033811|UniProtKB:O75610-1, 77-366 located_in GO:0005615 extracellular space PMID:11278322 IDA NCBITaxon:9606 UniProtKB:O75610-1 20080301 PRO:CNA PR:000036548 lefty 1 isoform 1 cleaved 2 (human) hLEFTY1/iso:1/Clv:2|UniProtKB:O75610-1, 135-366 located_in GO:0005615 extracellular space PMID:11278322 IDA NCBITaxon:9606 UniProtKB:O75610-1 20080301 PRO:CNA PR:000036548 lefty 1 isoform 1 cleaved 2 (human) hLEFTY1/iso:1/Clv:2|UniProtKB:O75610-1, 135-366 participates_in GO:0043406 positive regulation of MAP kinase activity PMID:11278322 IDA NCBITaxon:9606 UniProtKB:O75610-1 20080301 PRO:CNA