CD40LG ELISA Kit (Human)

Intra-assay Precision (Precision within an assay) : 3 samples with low, middle and high level Cluster Of Differentiation 40 Ligand (CD40L) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays) : 3 samples with low, middle and high level Cluster Of Differentiation 40 Ligand (CD40L) were tested on 3 different plates, 8 replicates in each plate. CV (%) = SD/meanX100 Intra-Assay: CV<10% Inter-Assay: CV<12%

CD154; CD40 antigen ligand; CD40 ligand; CD40L; CD40-L; gp39; hCD40L; HIGM1; IGM; IMD3; T-B cell-activating molecule; T-BAM; T-cell antigen Gp39; TNF-related activation protein; TNFSF5; TRAP; tumor necrosis factor (ligand) superfamily member 5; Tumor necrosis factor ligand superfamily member 5.

Cytokine that binds to CD40/TNFRSF5 (PubMed:1280226) . Costimulates T-cell proliferation and cytokine production. Its cross-linking on T-cells generates a costimulatory signal which enhances the production of IL4 and IL10 in conjunction with the TCR/CD3 ligation and CD28 costimulation (PubMed:8617933) . Induces the activation of NF-kappa-B and kinases MAPK8 and PAK2 in T-cells. Induces tyrosine phosphorylation of isoform 3 of CD28 (PubMed:15067037) . Mediates B-cell proliferation in the absence of co-stimulus as well as IgE production in the presence of IL4. Involved in immunoglobulin class switching (By similarity) .

The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Cluster Of Differentiation 40 Ligand (CD40L) . Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Cluster Of Differentiation 40 Ligand (CD40L) . Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Cluster Of Differentiation 40 Ligand (CD40L), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm +/- 10nm. The concentration of Cluster Of Differentiation 40 Ligand (CD40L) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Reconstitution & Storage Instructions Western Blotting/Immunoblotting (WB/IB) Protocol Immunohistochemistry (IHC) Protocol Immunocytochemistry (ICC) Protocol Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol Blocking Peptide Competition Protocol (BPCP) Immunoprecipitation (IP) Protocol Antibody Array (AA) Protocol Reconstitution & Storage Instructions Reconstitution & Storage Instructions Western Blotting/Immunoblotting (WB/IB) Protocol Western Blotting/Immunoblotting (WB/IB) Protocol Immunohistochemistry (IHC) Protocol Immunohistochemistry (IHC) Protocol Immunocytochemistry (ICC) Protocol Immunocytochemistry (ICC) Protocol Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol Blocking Peptide Competition Protocol (BPCP) Blocking Peptide Competition Protocol (BPCP) Immunoprecipitation (IP) Protocol Immunoprecipitation (IP) Protocol Antibody Array (AA) Protocol Antibody Array (AA) Protocol

Matrix Recovery Range (%) Average (%) serum (n=5) 97-105 101 EDTA plasma (n=5) 83-99 87 heparin plasma (n=5) 97-104 101 Matrix Recovery Range (%) Average (%) Matrix Recovery Range (%) Average (%) serum (n=5) 97-105 101 serum (n=5) 97-105 101 EDTA plasma (n=5) 83-99 87 EDTA plasma (n=5) 83-99 87 heparin plasma (n=5) 97-104 101 heparin plasma (n=5) 97-104 101

Component Amount Anti-CD40LG Microplate 96 Wells (12 x 8 Well Strips) CD40LG Lyophilized Standard 2 x 1 ng 100X Biotinylated CD40LG Detector Antibody 120 uL Avidin/HRP Conjugate 120 uL Standard Diluent 1 x 20 mL Detector Antibody Diluent 1 x 12 mL Conjugate Diluent 1 x 12 mL 30X Wash Buffer 1 x 20 mL TMB Substrate 1 x 9 mL Stop Solution 1 x 6 mL Component Amount Component Amount Anti-CD40LG Microplate 96 Wells (12 x 8 Well Strips) Anti-CD40LG Microplate 96 Wells (12 x 8 Well Strips) CD40LG Lyophilized Standard 2 x 1 ng CD40LG Lyophilized Standard 2 x 1 ng 100X Biotinylated CD40LG Detector Antibody 120 uL 100X Biotinylated CD40LG Detector Antibody 120 uL Avidin/HRP Conjugate 120 uL Avidin/HRP Conjugate 120 uL Standard Diluent 1 x 20 mL Standard Diluent 1 x 20 mL Detector Antibody Diluent 1 x 12 mL Detector Antibody Diluent 1 x 12 mL Conjugate Diluent 1 x 12 mL Conjugate Diluent 1 x 12 mL 30X Wash Buffer 1 x 20 mL 30X Wash Buffer 1 x 20 mL TMB Substrate 1 x 9 mL TMB Substrate 1 x 9 mL Stop Solution 1 x 6 mL Stop Solution 1 x 6 mL

This assay has high sensitivity and excellent specificity for detection of Cluster Of Differentiation 40 Ligand (CD40L) . No significant cross-reactivity or interference between Cluster Of Differentiation 40 Ligand (CD40L) and analogues was observed.