Membrane receptors are integral membrane proteins that enable cells to detect and respond to extracellular signals, including hormones, neurotransmitters, cytokines, chemokines, and growth factors. By converting extracellular ligand binding into intracellular signaling events, these receptors regulate numerous physiological processes such as cell proliferation, metabolism, immune responses, neuronal communication, and cardiovascular function. Because of their essential role in cell signaling and disease, membrane receptors remain among the most important therapeutic targets in modern drug discovery.
Approximately 20–30% of human genes encode membrane proteins, and nearly half of all approved drugs target membrane receptors or associated signaling pathways. Major receptor families—including G protein-coupled receptors (GPCRs), receptor tyrosine kinases (RTKs), ion channels, transporters, and phosphodiesterases (PDEs)—are widely studied in oncology, neuroscience, immunology, metabolic diseases, cardiovascular disorders, and infectious diseases. Reliable cell-based models are therefore critical for receptor pharmacology, ligand screening, signal transduction studies, and high-throughput drug discovery.
Stable cell lines provide consistent receptor expression and improved experimental reproducibility compared with transient transfection systems. They are widely used for functional receptor characterization, agonist and antagonist screening, potency determination (EC₅₀ and IC₅₀), mechanism-of-action studies, and assay development. eEnzyme offers a comprehensive portfolio of membrane receptor research products, including validated GPCR, PDE, ion channel, and receptor tyrosine kinase stable cell lines, membrane preparations, assay kits, and custom cell line development services. These products are designed to support both basic research and drug discovery by providing robust, assay-ready tools for cell signaling and membrane receptor studies.
We offer stable HEK293 and CHO-K1 cell lines expressing a wide range of human membrane receptors, providing robust platforms for functional studies, drug screening, and receptor characterization.