IL12B ELISA Kit

Catalog No. ABIN4986928

Human IL12B ELISA Kit, Colorimetric assay for quantification of Human IL12B.

Quick Overview for IL12B ELISA Kit (ABIN4986928)

Target: IL12B (Interleukin 12 beta (IL12B))

Reactivity: Human

Detection Method: Colorimetric

Method Type: Sandwich ELISA

Detection Range: 62.5-4000 pg/mL

Application: ELISA

Sample Type: Cell Culture Supernatant, Serum, Plasma (heparin), Plasma (citrate), Plasma (EDTA)

Product Details IL12B ELISA Kit

Minimum Detection Limit: 62.5 pg/mL

Analytical Method: Quantitative

Specificity: Natural and recombinant Human IL-12p40 Ligand

Sensitivity: 30 pg/mL

Material not included:

• Microplate reader.
• Pipettes and pipette tips.
• EP tube Deionized or distilled water.

Application Details

Application Notes: Detection Wavelength: 450 nm

Sample Volume: 20 μL

Assay Time: 3 h

Plate: Pre-coated

Restrictions: For Research Use only

Handling

Storage: 4 °C

Target Details for IL12B

Target: IL12B (Interleukin 12 beta (IL12B))

Alternative Name: IL-12p40

Background: Interleukin-12, also known as natural killer cell stimulatory factor (NKSF) or cytotoxic lymphocyte maturation factor (CLMF), is a pleiotropic cytokine originally identified in the medium of activated human B lymphoblastoid cell lines. IL-12 is produced by macrophages and B lymphocytes and has multiple effects on T-cells and NK cells, including stimulation of cytotoxic activity, proliferation, and promotion of Th1 development as well as IFNγ and TNF production. IL-12 is a disulfidelinked, 70 kDa (p70) heterodimeric glycoprotein composed of a 40 kDa (p40) subunit and a 35 kDa (p35) subunit. The p40 and p35 subunits by themselves have no IL-12 activity, the p40 dimer has been shown to bind the IL-12 receptor and to be an IL-12 antagonist. Free p35 has not been detected in supernatant solutions of cultured cells expressing only p35 or both p35 and p40 mRNAs. In contrast, p40 is secreted in excess of IL-12 in cells expressing both p35 and p40 mRNAs. The p40 subunit of IL-12 has been shown to have extensive amino acid sequence homology to the extracellular domain of the human IL-6 receptor while the p35 subunit shows distant but significant sequence similarity to IL-6, G-CSF, and chicken MGF. These observations have led to the suggestion that IL-12 might have evolved from a cytokine/soluble receptor complex. Human and mouse IL-12 share 70 % and 60 % amino acid sequence homology in their p40 and p35 subunits, respectively. IL-12 apparently shows species specificity with human IL-12 reportedly showing minimal activity in the murine system.

Pathways: JAK-STAT Signaling, Cellular Response to Molecule of Bacterial Origin, Regulation of Leukocyte Mediated Immunity, Positive Regulation of Immune Effector Process, Activated T Cell Proliferation