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Invitrogen
Human PD-L2 ELISA Kit
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Product Specifications
Analytical sensitivity
3.65 pg/mL
Assay range
39-2,500 pg/mL
Sample type/volume
Cell Lysate
10 µL
Plasma
10 µL
Serum
10 µL
Supernatant
10 µL
Hands-on time
1 hr 20 min
Time-to-result
3 hr 30 min
Homogenous (no wash)
No
Interassay CV
3.1%
Intraassay CV
4.5%
Instrument
Absorbance Microplate Reader
Product size
96 Tests
Contents
Pre-coated 96 well plate
Standard
Sample Diluent
Assay Buffer concentrate
Biotinylated Detection Antibody
SAV-HRP
Wash Buffer
Chromogen
Stop Solution
Controls
Adhesive Plate Covers
Standard
Sample Diluent
Assay Buffer concentrate
Biotinylated Detection Antibody
SAV-HRP
Wash Buffer
Chromogen
Stop Solution
Controls
Adhesive Plate Covers
Shipping conditions
Wet ice
Storage
2-8°C
Protein name
CD273 (B7-DC)
Species (tested)
Human
Assay kit format
Sandwich ELISA Kit
Detector antibody conjugate
Biotin
Label or dye
HRP
About This Kit
The Human Programmed Death-1 Receptor Ligand (Hu PD-L2) ELISA quantitates Hu PD-L2 in human serum, plasma,cell lysates, or cell culture medium. The assay will exclusively recognize both natural and recombinant Hu PD-L2.
Principle of the method
The Human PD-L2 solid-phase sandwich ELISA (enzyme-linked immunosorbent assay) is designed to measure the amount of the target bound between a matched antibody pair. A target-specific antibody has been pre-coated in the wells of the supplied microplate. Samples, standards, or controls are then added into these wells and bind to the immobilized (capture) antibody. The sandwich is formed by the addition of the second (detector) antibody, a substrate solution is added that reacts with the enzyme-antibody-target complex to produce measurable signal. The intensity of this signal is directly proportional to the concentration of target present in the original specimen.
Rigorous validation
Each manufactured lot of this ELISA kit is quality tested for criteria such as sensitivity, specificity, precision, and lot-to-lot consistency. See manual for more information on validation.
Target information
Programmed death-ligand 2 (PD-L2), or B7-DC, is a member of the B7 ligand family within the immunoglobulin superfamily that, along with programmed death-ligand 1 (PD-L1), acts as a ligand for programmed cell death protein 1 (PD-1). Though expressed primarily in dendritic cells, PD-L2 expression can be induced on a wide variety of immune and non-immune cells depending on the microenvironment. PD-L2 expression is particularly upregulated in the presence of Th2 cytokine, IL-4, as well as Th1 cytokines, TNF-alpha and IFN-gamma to a lesser degree. While generally expressed at lower levels compared to PD-L1, PD-L2 demonstrates a 2 to 6 times higher relative affinity to PD-1 than PD-L1. PD-1 and its ligands are referred to as inhibitory immune checkpoint molecules in that they provide useful negative feedback during physiological homeostasis. Ligation of PD-L2 or PD-L1 inhibits activation, proliferation, and cytokine secretion (e.g. IFN-gamma, IL-10) in T cells, ultimately dampening immune response. Conversely, studies have shown that PD-L2 can also stimulate T cell proliferation and cytokine production, even in PD-1-deficient T cells, suggesting additional receptors. Recent studies have concluded that PD-L2 also binds to a second receptor, repulsive guidance molecule b (RGMb), which was originally identified as a receptor for bone morphogenetic proteins (BMPs). RGMb is expressed in the central nervous system, as well as in macrophages, however, its role in immunity is only beginning to emerge. Interaction between PD-L2 and RGMb regulates the development of respiratory tolerance in the lung through BMP and/or neogenin signaling pathways. The naturally occurring human PD-L2 monomer consists of a 201-amino-acid extracellular domain, a 21-amino-acid transmembrane domain, and a 32-amino-acid cytoplasmic domain.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Bioinformatics
Gene aliases : B7DC, bA574F11.2, Btdc, CD273, PD-L2, PDCD1L2, PDCD1LG2, PDL2
Gene ID : (Human) 80380
Gene symbol : PDCD1LG2
Protein Aliases : B7 dendritic cell molecule, B7-DC, Butyrophilin B7-DC, CD273, PD-1 ligand 2, PD-L2, PDCD1 ligand 2, Programmed death ligand 2, MGC124039, MGC124040, PD1 ligand 2, PD-1-ligand 2, Programmed cell death 1 ligand 2, programmed death ligand 2
UniProt ID (Human) Q9BQ51
Performance Guarantee
If an Invitrogen™ immunoassay doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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