Human CCL17/ TARC ELISA Kit

Catalog No.: BEK1024

Size: 96T

Range: 31.2 pg/ml-2000 pg/ml

Sensitivity < 1 pg/ml

Storage and Expiration: Store at 2-8℃ for 6 months, or at -20℃ for 12 months. 

Application: For quantitative detection of CCL17 in human serum, plasma, body fluids, tissue lysates or cell culture supernatants.

Introduction

Chemokine (C-C motif) ligand 17 (CCL17), also known as thymus and activation regulated chemokine (TARC), is a small cytokine belonging to the CC chemokine family. It is expressed constitutively in thymus, but only transiently in phytohemagglutinin-stimulated peripheral blood mononuclear cells. This chemokine specifically binds and induces chemotaxis in T cells and elicits its effects by interacting with the chemokine receptor CCR4. The gene for CCL17 maps to 16q13.

Principle of the Assay  

This kit was based on sandwich enzyme-linked immune-sorbent assay technology. Anti-CCL17 polyclonal antibody was pre-coated onto 96-well plates. And the biotin conjugated anti-CCL17 polyclonal antibody was used as detection antibodies. The standards, test samples and biotin conjugated detection antibody were added to the wells subsequently, and wash with wash buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with wash buffer. TMB substrates were used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the CCL17 amount of sample captured in plate. Read the O.D. absorbance at 450nm in a microplate reader, and then the concentration of CCL17 can be calculated.

Kit components

1. One 96-well plate pre-coated with anti-Human CCL17 antibody
2. Lyophilized Human CCL17 standards: 2 tubes (10 ng / tube)                     
3. Sample / Standard diluent buffer: 30ml
4. Biotin conjugated anti-Human CCL17 antibody (Concentrated): 130μl. Dilution: 1:100
5. Antibody diluent buffer: 12ml
6. Avidin-Biotin-Peroxidase Complex (ABC) (Concentrated): 130μl. Dilution: 1:100
7. ABC diluent buffer: 12ml
8. TMB substrate: 10ml
9. Stop solution: 10ml
10. Wash buffer (25X): 30ml

Note: Reconstitute standards and test samples with Kit Component 3.

Material Required But Not Provided

1. 37℃ incubator
2. Microplate reader (wavelength: 450nm)
3. Precise pipette and disposable pipette tips
4. Automated plate washer
5. ELISA shaker
6. 1.5ml of Eppendorf tubes
7. Plate cover
8. Absorbent filter papers
9. Plastic or glass container with volume of above 1L