Unconjugated

Recombinant

E. coli

Human

Store at −20 °C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7 °C for 2-7 days. Aliquots of reconstituted samples are stable at −20 °C for 3 months.

ED50 is 0.5 ng/ml as determined by the dosedependent inhibition of IL1 stimulation of D10S cells.
Specific Activity of 2.0 x 106 IU/mg.

DIRA

P18510 (Human)

IL1RA

>95% as determined by reducing SDS-PAGE.

MRPSGRKSSKMQAFRIWDVNQKTFYLRNNQLVAGYLQGPNVNLEEKIDVVPIEPHALFLGIHGGK MCLSCVKSGDETRLQLEAVNITDLSENRKQDKRFAFIRSDSGPTTSFESAACPGWFLCTAMEADQ PVSLTNMPDEGVMVTKFYFQEDE

Lyophilized from a 0.2 um filtered solution of 50mM TrisHCl, 200mM NaCl, pH 7.5.

SDS-PAGE , FuncS