IL-12 beta
Interleukin-12 subunit beta (IL-12B, commonly p40) is the 40 kDa shared subunit of two distinct heterodimeric cytokines: IL-12 (paired with p35/IL-12A) and IL-23 (paired with p19/IL-23A). Structurally it comprises two fibronectin type III domains, an Ig-like domain and a WSXWS motif, resembling a soluble cytokine receptor fused to a cytokine chain. p40 is produced by dendritic cells, macrophages, B cells and neutrophils after TLR or CD40 stimulation, and is additionally secreted as a monomer and disulfide-linked homodimer (p80) with distinct functions: p40 monomer antagonizes IL-12 signaling, p80 signals through IL-12Rβ1 to drive TNF and nitric oxide production in macrophages and neuropathic pain. Polymorphisms in IL12B influence susceptibility to tuberculosis, type 1 diabetes and psoriasis; the anti-p40 antibody ustekinumab blocks both IL-12 and IL-23 and is highly effective in psoriasis and Crohn's disease.
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IL-12 beta Recombinant Proteins (26)
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Recombinant Protein Expression Service
- Codon Optimization
- Gene Synthesis
- Construction of Expression Vector
- Strain Screening
- Protein Expression
- Purification & QC
- Protein Delivery
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- Formula: Human
- Molecular Weight: Sf9 insect cells
The EpCAM/TROP1 protein serves as an important homogeneous interacting molecule that promotes direct contact between intestinal epithelial cells (IEC) and intraepithelial lymphocytes (IEL) in the mucosal epithelium. This feature helps establish an immune barrier against mucosal infections. EpCAM/TROP1 Protein, Human (His-SUMO) is the recombinant human-derived EpCAM/TROP1 protein, expressed by E. coli , with N-6*His, N-SUMO labeled tag.
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