We developed a membrane bound reporter and selection molecule for sorting by fluorescence activated cell sorting (FACS) of cells producing a protein of interest. This molecule is composed of a transmembrane (TM) domain, fused on its extracellular end to a biotin mimetic peptide (BMP) and on its intracellular side to puromycin N-acetyl transferase (PAC). In this format BMP is displayed on the cell membrane surface and PAC faces the cell cytoplasm.
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