Recombinant Human Interleukin-23 produced in Sf9 Baculovirus cells is a glycosylated heterodimer composed of 2 disulfide-linked subunits. A p19 subunit which is unique to IL23 and a p40 subunit which is shared with IL12. The p19 subunit/IL23A (20-189aa, total of 176 aa, MW 19.5kDa) and p40 subunit /IL12B (23-328aa, total of 306 aa, MW 34.6kDa), the total predicted molecular mass of 54.1kDa (Molecular weight on SDS-PAGE will appear higher). IL23 is fused to a 6 aa His-Tag at C-terminus and purified by proprietary chromatographic techniques.
Sf9, Baculovirus cells.
IL23 protein solution (1mg/ml) contains PBS (pH7.4) and 10% glycerol.
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid multiple freeze-thaw cycles.
Greater than 95.0% as determined by analysis by SDS-PAGE.
Amino acid sequence
IL12B: IWELKKDVYV VELDWYPDAP GEMVVLTCDT PEEDGITWTL DQSSEVLGSG KTLTIQVKEF GDAGQYTCHK GGEVLSHSLL LLHKKEDGIW STDILKDQKE PKNKTFLRCE AKNYSGRFTC WWLTTISTDL TFSVKSSRGS SDPQGVTCGA ATLSAERVRG DNKEYEYSVE CQEDSACPAA EESLPIEVMV DAVHKLKYEN YTSSFFIRDI IKPDPPKNLQ LKPLKNSRQV EVSWEYPDTW STPHSYFSLT FCVQVQGKSK REKKDRVFTD KTSATVICRK NASISVRAQD RYYSSSWSEW ASVPCS.
IL23A: RAVPGGSSPA WTQCQQLSQK LCTLAWSAHP LVGHMDLREE GDEETTNDVP HIQCGDGCDP QGLRDNSQFC LQRIHQGLIF YEKLLGSDIF TGEPSLLPDS PVGQLHASLL GLSQLLQPEG HHWETQQIPS LSPSQPWQRL LLRFKILRSL QAFVAVAARV FAHGAATLSP HHHHHH.