Direct Binding Analysis Between C-Type Lectins and Glycans Using Immunoglobulin Receptor Fusion Proteins
Methods in molecular biology (Clifton, N.J.)(2020)
摘要
C-type lectins bind to carbohydrate structures in a Ca2+-dependent manner. Some transmembrane forms of lectins act as innate immune receptors and induce signal transduction pathways in macrophages and dendritic cells (DCs). Expressing these receptors in cells bearing a reporter gene is a useful tool to investigate ligand binding and recognition. However, it cannot be used to quantify the precise affinity of the interaction, and the involvement of other proteins remains a possibility. Direct binding between a receptor and its ligand can be investigated using an immunoglobulin receptor (Ig)-fused soluble protein. This binding can be assessed using enzyme-linked immunosorbent assays and flow cytometry, and the fusion protein may also be used in a glycan array. In this chapter, we explain the generation of Ig fusion proteins and subsequent binding assays using these proteins.
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关键词
C-type lectin receptors,Ig fusion protein,Transfection,Western blotting,ELISA,Staining
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