[Term] id: PR:000001271 name: interleukin-1 receptor antagonist protein isoform 1, signal peptide removed form def: "An interleukin-1 receptor antagonist protein isoform 1 that has had the signal peptide removed to yield the mature form." [PMID:2139180] comment: Category=modification. synonym: "IL1RN/iso:1/SigPep-" EXACT PRO-short-label [PRO:DNx] synonym: "interleukin-1 receptor antagonist protein isoform 1 cleaved 1" EXACT [] intersection_of: PR:000001228 ! interleukin-1 receptor antagonist protein isoform 1 intersection_of: lacks_part SO:0000418 ! signal_peptide