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The objective is to generate milligram quantities of recombinant human alpha 2C2 adrenergic receptor for X-ray crystallographic studies. It has been cloned in Saccharomyces cerevisiae, and the production level is at best about 13 pmol/mg of membrane protein, as estimated by radio-ligand binding assay. The receptor is solubilized with sucrose monolaurate followed by immunoaffinity purification and reconstitution into phospholipid vesicles. The efficiency of solubilization and immuno-purification are 60% and 91%, respectively.