Membrane proteins play an essential role in life activities. In the sequenced genome, membrane proteins account for 30% of drug-targeted sites. Functions such as signal transmission between cells and detection of the external environment are mostly realized through special membrane receptor proteins on biological membranes. Many human diseases are related to the abnormal function of these membrane proteins. Membrane proteins are important drug targets, but their application is limited due to factors such as low expression, difficulty in preparation, and poor stability. With a professional membrane protein production team and rich experience in membrane protein production, Creative Biostructure can express and purify membrane proteins that are currently unavailable in the market (such as GPCRs, ion channels, transporters, enzymes, and viral targets).