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Invitrogen
Human LAG-3 ELISA Kit
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Product Specifications
Analytical sensitivity
2.20 pg/mL
Assay range
6.2-400 pg/mL
Sample type/volume
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
6.9%
Intraassay CV
5.8%
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
Adhesive Plate Covers
Standard
Sample Diluent
Assay Buffer concentrate
Biotinylated Detection Antibody
SAV-HRP
Wash Buffer
Chromogen
Stop Solution
Adhesive Plate Covers
Shipping conditions
Wet ice
Storage
2-8°C
Protein name
LAG-3 (CD223)
Species (tested)
Human
Assay kit format
Sandwich ELISA Kit
Detector antibody conjugate
Biotin
Label or dye
HRP
About This Kit
The Human Lymphocyte-Activation Gene 3 (Hu LAG-3) (CD223) ELISA quantitates Hu LAG-3 in human serum, plasma, buffered solution, or cell culture medium. The assay will exclusively recognize both natural and recombinant Hu LAG-3.
Principle of the method
The Human LAG-3 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
LAG-3 is a 70-kDa surface glycoprotein in the immunoglobulin superfamily, with structural homology to CD4. It binds to MHC class II molecules with higher affinity than CD4 and is involved in the negative regulation of T cell activation and homeostatic proliferation. LAG-3 is expressed on the surface of activated T cells, including regulatory T cells, and NK cells. Notably, CD8+ T cells express LAG-3 at significantly higher levels than CD4+ T cells. Additionally, the coexpression of LAG-3 and CD49b has been proposed as a marker for identifying Type 1 regulatory T cells (Tr1 cells) in both humans and mice. This highlights LAG-3s role in immune regulation and its potential as a target for therapeutic interventions in immune-related conditions.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Bioinformatics
Gene aliases : CD223, FDC, LAG3
Gene ID : (Human) 3902
Gene symbol : LAG3
Protein Aliases : CD223, LAG-3, Protein FDC, sLAG 3, sLAG3, soluble LAG 3lymphocyte activating 3, soluble LAG3, Lymphocyte activation gene 3 protein, lymphocyte-activation gene 3
UniProt ID (Human) P18627
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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