Description: Recombinant Human IL1RN Protein is produced by E. coli expression system and the target gene encoding Arg26-Glu177 is expressed. Form: Lyophilized from a 0.2 μM filtered solution of 50mM Tris-HCl, 200mM NaCl, pH 7.5. Gene Symbol: IL1RN Alternative Names: IL1F3; IL1RA; Interleukin-1 receptor antagonist protein; IL-1RN; IL-1ra; IRAP; ICIL-1RA; IL1 inhibitor; AnakinraEntrez Gene (Human): 3557SwissProt (Human): P18510Purity : Greater than 95% as determined by RP-HPLC and reducing SDS-PAGE.Chemical Structure : MRPSGRKSSK MQAFRIWDVN QKTFYLRNNQ LVAGYLQGPN VNLEEKIDVV PIEPHALFLG IHGGKMCLSC VKSGDETRLQ LEAVNITDLS ENRKQDKRFA FIRSDSGPTT SFESAACPGW FLCTAMEADQ PVSLTNMPDE GVMVTKFYFQ EDE Directions for Use : Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/ml. Dissolve the lyophilized protein in 1X PBS. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.Quality Control : Endotoxin: Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test.Storage/Stability : Lyophilized protein should be stored at -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at -20°C for 3 months.