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RecombinantIL-33, Human

CAT: 0384-BK0104-01Size: 10 µgDry Ice: NoHazardous: No
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CAT#:0384-BK0104-01Size:10 µg
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24/48H Stock Items & 2 to 6 Weeks non Stock Items.
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Description
Interleukin-33 (IL-33) is a proinflammatory cytokine that belongs to the IL-1 family. IL-33 is expressed in a variety of cells, including epithelial and endothelial cells, smooth muscle cells, macrophages and fibroblasts. The primary receptors for IL-33 are ST2 and IL-1 receptor accessory protein (IL-1RAcP), both of which belong to the IL-1 receptor family. IL-33 is localized to the nucleus of resting cells where it binds to chromatin in the H2A-H2B histone complex as a transcriptional suppressor. IL-33 is secreted by cells during injury which induces a T-helper 2 type inflammatory response. Evidence suggests IL-33 plays a role in autoimmune disease. IL-33’s interaction with ST2 can drive allergic pathology and IL-33 has been reported to play a role in the development of rheumatoid arthritis and systemic lupus erythematosus.Recombinant humanInterleukin-33 (rhIL-33) produced in E.coli is a single non-glycosylated polypeptide chain containing 159 amino acids. A fully biologically active molecule, rhIL-33 has a molecular mass of 18.0 kDa analyzed by reducing SDS-PAGE and is obtained by proprietary chromatographic techniques at GenScript.
CAS Number
9000-83-3
Endotoxin
< 0.2 EU/μg, determined by LAL method.
Purity
> 95% by SDS-PAGEanalysis.
Bioactivity
ED50 <0.5ng/mL, measured by a cell proliferation assay using D10S cells, corresponding to a specific activity of > 2x 10ˆ6 units/mg.
Reconstitution
Reconstituted in ddH2O at 100 μg/mL.
Molecular Weight
18.0 kDa, observed by reducing SDS-PAGE.
Storage Conditions
Lyophilized recombinant human Interleukin-33 (rhIL-33) remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, rhIL-33 remains stable up to 2 weeks at 4°C or up to 3 months at -20°C.
Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation
Lyophilized after extensive dialysis against PBS.
Host or Source
Escherichia coli.
Recommended Usage
This material is offered by USA Bioworld biotech for research, laboratory or further evaluation purposes. For research use only.
AA Sequence
SIT GISPITEYLA SLSTYNDQSI TFALEDESYE IYVEDLKKDE KKDKVLLSYY ESQHPSNESG DGVDGKMLMVTLSPTKDFWL HANNKEHSVE LHKCEKPLPD QAFFVLHNMH SNCVSFECKT DPGVFIGVKD NHLALIKVDS SENLCTENIL FKLSET

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