- BP000144-C033: Recombinant Human Interleukin-1 Receptor Antagonist Protein (IL-1RA) 
 
 Source: E. coli-derived.
 The ED50 as determined by the dose-dependant inhibition of IL-1 stimulation of D10S cells was found to be 0.5 ug/ml, corresponding to a Specific Activity of 2.0 x 106 IU/mg.
 Purity: > 95% by RP-HPLC and reducing SDS-PAGE.
 Endotoxin: < 0.1 ng/ug (1 EU/ug).
- BP001376-C477: Recombinant Human Interleukin-1 Receptor Accessory Protein (IL-1RACP) 
 
 Source: HEK 293-derived.
 Purity: > 95% by SEC-HPLC and reducing SDS-PAGE.
 Endotoxin: < 0.1 ng/ug (1 IEU/ug).
- BP000144-CYT-203: Recombinant Human Interleukin-1 Receptor Antagonist Protein (IL-1RA) 
 
 Source: E. coli-derived.
 The ED50 as determined by the dose-dependant inhibition of IL-1 stimulation of D10S cells was found to be 0.5 ug/ml corresponding to a Specific Activity of 2,000,000 IU/mg.
 Purity: > 98% by SDS-PAGE and RP-HPLC.
- BP000144-CYT-481: Recombinant Human Interleukin-1 Receptor Antagonist Protein (IL-1RA), His Tag 
 
 Source: E. coli-derived.
 Purity: > 95% by SDS-PAGE and RP-HPLC.
- BP000144-CYT-658: Recombinant Mouse Interleukin-1 Receptor Antagonist Protein (IL-1RA) Protein 
 
 Source: E. coli-derived.
 The mouse IL-1Ra is capable of inhibiting IL-1-alpha activity in helper T cell line D10.G4.1.
 Purity: > 98% by SDS-PAGE and RP-HPLC.