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Analysis of DKK-3 (Human) by ELISA (CAT#: STEM-MB-0770-LGZ)

Introduction

DKK (Dickkopf) is a group of secreted glycoproteins, including DKK-1-4 four members. DKKs have a signal sequence and two cysteine-rich conserved domains, namely CYS1 near the N-terminus and CYS2 near the C-terminus. Human DKK-1 is composed of 266 amino acids, and its relative molecular mass is about 29k. DKK-1 is an inhibitory molecule of Wnt pathway.




Principle

Enzyme-linked immunosorbent assay (ELISA) is an enzyme-labeled solid phase immunoassay technique. Its basic principle is to bind the antigen (or antibody) to the solid phase carrier, and the antigen (or antibody) and a certain enzyme link to enzyme labeled antigen (or antibody). During detection, the sample to be tested and the enzymic antigen (or antibody) react with the antigen (or antibody) on the solid phase carrier according to certain procedures, and then remove the unreacted part by washing method. After adding the substrate, the substrate is catalyzed by the enzyme on the solid phase carrier to produce colored substances. Through qualitative or quantitative detection of the amount of colored products, the content of the substance to be measured in the sample can be determined.

Applications

Oncology & Cancer

Procedure

1. Add standards or samples to each well and incubate.
2. Pour off the liquid in the well, biotinylated antibody working solution and incubate.
3. Add enzyme conjugate working solution and incubate.
4. Add substrate TMB and incubate.
5. Add stop solution and measure OD value.
6. Calculation of results.

Materials

• Sample Type: Serum, plasma or other biological fluids
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