Interleukin 1 Receptor Antagonist Protein

**Definition:** A ligand that binds to but fails to activate the INTERLEUKIN 1 RECEPTOR. It plays an inhibitory role in the regulation of INFLAMMATION and FEVER. Several isoforms of the protein exist due to multiple ALTERNATIVE SPLICING of its mRNA.

**Tree numbers:** - D12.644.276.374.460 - D12.776.467.374.460 - D23.529.374.460

**Synonyms:** - IL-1 Inhibitor, Urine - IL1 Febrile Inhibitor - Interleukin 1 Inhibitor, Urine - Urine-Derived IL1 Inhibitor - IL-1Ra