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Human CD40 Ligand/TNFSF5 Quantikine ELISA Kit

R&D Systems, part of Bio-Techne | Catalog # DCDL40

R&D Systems, part of Bio-Techne
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DCDL40
PDCDL40
SCDL40

Control Products Available

Key Product Details

Assay Length

4.5 hours

Sample Type & Volume Required Per Well

Cell Culture Supernates (100 µL), Serum (20 µL), Platelet-poor EDTA Plasma (100 µL), Platelet-poor Heparin Plasma (100 µL)

Sensitivity

10.1 pg/mL

Assay Range

62.5-4000 pg/mL (Cell Culture Supernates, Serum, EDTA Plasma, Platelet-poor EDTA Plasma, Platelet-poor Heparin Plasma)

Product Summary for Human CD40 Ligand/TNFSF5 Quantikine ELISA Kit

The Quantikine Human CD40 Ligand Immunoassay is a 4.5 hour solid-phase ELISA designed to measure human CD40 Ligand in cell culture supernates, serum, and plasma. It contains E. coli-expressed recombinant human CD40 Ligand and has been shown to accurately quantitate the recombinant factor. Results obtained using natural human CD40 Ligand showed linear curves that were parallel to the standard curves obtained using the Quantikine kit standards. These results indicate that this kit can be used to determine relative mass values for naturally occurring human CD40 Ligand.

Product Specifications

Assay Type

Solid Phase Sandwich ELISA

Format

96-well strip plate

Measurement

Quantitative ELISA

Detection Method

Colorimetric - 450nm (TMB)

Conjugate

HRP

Reactivity

Human

Specificity

Natural and recombinant human CD40 Ligand

Cross-reactivity

< 0.5% cross-reactivity observed with available related molecules. < 50% cross-species reactivity observed with species tested.

Interference

No significant interference observed with available related molecules.

Precision

Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested on one plate to assess intra-assay precision.

Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in separate assays to assess inter-assay precision.

Cell Culture Supernates, Platelet-poor EDTA Plasma, Platelet-poor Heparin Plasma, Serum

Intra-Assay Precision Inter-Assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 40 40 40
Mean (pg/mL) 430 1212 2638 437 1205 2612
Standard Deviation 21.8 54.4 143 27.9 72.7 162
CV% 5.1 4.5 5.4 6.4 6.0 6.2

Recovery for Human CD40 Ligand/TNFSF5 Quantikine ELISA Kit

The recovery of CD40 Ligand spiked to levels throughout the range of the assay in various matrices was evaluated.

Sample Type Average % Recovery Range %
Cell Culture Media (n=4) 102 90-114
Platelet-poor EDTA Plasma (n=5) 98 86-107
Platelet-poor Heparin Plasma (n=5) 94 86-113

Linearity

To assess the linearity of the assay, samples containing and/or spiked with high concentrations of CD40 Ligand were serially diluted with Calibrator Diluent to produce samples with values within the dynamic range of the assay.

Human CD40 Ligand/TNFSF5 ELISA Linearity

Scientific Data Images for Human CD40 Ligand/TNFSF5 Quantikine ELISA Kit

Human CD40 Ligand/TNFSF5 ELISA Standard Curve

Human CD40 Ligand/TNFSF5 ELISA Standard Curve

Preparation and Storage

Shipping

The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: CD40 Ligand/TNFSF5

CD40 Ligand, also known as TNFSF5, CD154, TRAP, and gp39, is a trimeric protein that is expressed in transmembrane and soluble forms. It is expressed by many immune cell types as well as by endothelial and smooth muscle cells of the vasculature. It binds to CD40 on antigen presenting cells, platelets, and endothelial and epithelial cells, leading to enhanced B cell activation and T cell dependent humoral immune responses. CD40 Ligand dysregulation contributes to immune pathology in AIDS, atherosclerosis, atherothrombosis, and restenosis.

Alternate Names

CD154, CD40L, CD40LG, gp39, TNFSF5, TRAP

Entrez Gene IDs

959 (Human); 21947 (Mouse); 84349 (Rat)

Gene Symbol

CD40LG

Additional CD40 Ligand/TNFSF5 Products

Product Documents for Human CD40 Ligand/TNFSF5 Quantikine ELISA Kit

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human CD40 Ligand/TNFSF5 Quantikine ELISA Kit

For research use only

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⚠ WARNING: This product can expose you to chemicals including N,N-Dimethylforamide, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.