PR:000036601 interleukin-1 receptor antagonist protein isoform 1, signal peptide removed form (human) hIL1RN/iso:1/SigPep-|PRO_0000015328|UniProtKB:P18510-1, 26-177 capable_of GO:0045352 interleukin-1 type I receptor antagonist activity PMID:2139180 IDA NCBITaxon:9606 UniProtKB:P18510-1 20080922 PRO:CNA PR:000036601 interleukin-1 receptor antagonist protein isoform 1, signal peptide removed form (human) hIL1RN/iso:1/SigPep-|PRO_0000015328|UniProtKB:P18510-1, 26-177 located_in GO:0005615 extracellular space PMID:2139180 IDA NCBITaxon:9606 UniProtKB:P18510-1 20080922 PRO:CNA PR:P18510-2 interleukin-1 receptor antagonist protein isoform 2 (human) hIL1RN/iso:2|interleukin-1 receptor antagonist protein isoform icIL-1ra (human) located_in GO:0005622 intracellular anatomical structure PMID:1827201 IDA NCBITaxon:9606 UniProtKB:P18510-2 20080922 PRO:CNA PR:P18510-2 interleukin-1 receptor antagonist protein isoform 2 (human) hIL1RN/iso:2|interleukin-1 receptor antagonist protein isoform icIL-1ra (human) located_in GO:0005615 extracellular space PMID:16564702 IDA NCBITaxon:9606 UniProtKB:P18510-2 20080922 PRO:CNA Note=In response to P2RX7 receptor or ATP stimulation PR:P18510-3 interleukin-1 receptor antagonist protein isoform 3 (human) hIL1RN/iso:3|interleukin-1 receptor antagonist protein isoform icIL-1ra type II (human) located_in GO:0005622 intracellular anatomical structure PMID:7629520 IDA NCBITaxon:9606 UniProtKB:P18510-3 20080922 PRO:CNA PR:P18510-4 interleukin-1 receptor antagonist protein isoform 4 (human) hIL1RN/iso:4 located_in GO:0005622 intracellular anatomical structure PMID:12671514 IC NCBITaxon:9606 PMID:12671514 UniProtKB:P18510-4 20080922 PRO:CNA