Human IL-12B/p40/NKSF2 Protein (P40-HM112)
  • Express System: HEK293
  • Product Tag: C-His
  • Purity: > 95% as determined by Bis-Tris PAGE
  • Activity: Immobilized Human IL-12B, His Tag at 1ug/ml (100ul/Well) on the plate. Dose response curve for Anti-IL-12 Antibody, hFc Tag with the EC50 of 18.5ng/ml determined by ELISA. The affinity constant of 98.1nM as determined in SPR assay (Biacore T200). See testing image for detail.
  • Amino Acid Range: Ile23-Ser328
Catalog #P40-HM112
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Product Description
 Recombinant Human IL-12B/p40/NKSF2 Protein is expressed from HEK293 with His tag at the C-Terminus.It contains Ile23-Ser328.
Product Background
 Interleukin (IL)‑12B, which encodes the p40 subunit common to IL‑12 and IL‑23, as one of the genes for which expression in fibroblast‑like synoviocytes from patients with rheumatoid arthritis (RA‑FLS) is induced by DcR3.Decoy receptor 3 (DcR3) competitively binds to three ligands, Fas ligand, lymphotoxin‑related inducible ligand that competes for glycoprotein D binding to herpesvirus entry mediator on T cells and tumor necrosis factor‑like ligand 1A (TL1A), to prevent their effects. Recent studies have suggested that DcR3 directly affects cells as a ligand.
Product Category
 Recombinant Protein
Target
 IL-12B/p40/NKSF2
Synonyms
 IL-12B; CLMF p40; IL-12 subunit p40; NKSF2; CLMF; CLMF2; NKS
Accession
Species
 Human
Biotinylated
 no
Amino Acid Range
 Ile23-Ser328
Molecular Weight
 The protein has a predicted MW of 35.8 kDa. Due to glycosylation, the protein migrates to 40-50 kDa based on Bis-Tris PAGE result.
Activity
 Immobilized Human IL-12B, His Tag at 1ug/ml (100ul/Well) on the plate. Dose response curve for Anti-IL-12 Antibody, hFc Tag with the EC50 of 18.5ng/ml determined by ELISA. The affinity constant of 98.1nM as determined in SPR assay (Biacore T200). See testing image for detail.
Product Tag
 C-His
Express System
 HEK293
Purity
 > 95% as determined by Bis-Tris PAGE
Endotoxin
 Less than 1EU per ug by the LAL method.
Form
 Lyophilized
Shipping
 Shipped at ambient temperature.
Formulation
 Lyophilized from 0.22um filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution
 Centrifuge the tube before opening. Reconstituting to a concentration more than 100 ug/ml is recommended. Dissolve the lyophilized protein in distilled water.
Stability And Storage
 Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
Human IL-12B, His Tag immobilized on CM5 Chip can bind Human IL-12 R beta 1, His Tag with an affinity constant of 98.1nM as determined in a SPR assay (Biacore T200).
Immobilized Human IL-12B, His Tag at 1ug/ml (100ul/Well) on the plate. Dose response curve for Anti-IL-12 Antibody, hFc Tag with the EC50 of 18.5ng/ml determined by ELISA.
Immobilized Human IL-12B, His Tag at 5ug/ml (100ul/well) on the plate. Dose response curve for Human IL-12 R beta 1, hFc Tag with the EC50 of 0.11ug/ml determined by ELISA (QC Test).
Human IL-12B on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

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