title: Vectors for expression and secretion of FLAG epitope-tagged proteins in mammalian cells.
abstract: The FLAG peptide, AspTyrLysAspAspAspAspLys, has been used as an epitope tag in a variety of cell types. The modification of the cytomegalovirus (CMV) promoter containing vector, pCMV5, to create two transient expression vectors designed for secretion and intracellular expression of FLAG-fusion proteins in mammalian cells is described. As a functional test, the bacterial alkaline phosphatase gene was cloned into both vectors, and anti-FLAG monoclonal antibodies were used for detection of FLAG epitope-tagged bacterial alkaline phosphatase in mammalian cells. In addition, secreted bacterial alkaline phosphatase was purified from the extracellular medium by anti-FLAG affinity chromatography.
authors.affiliation: Scientific Imaging Systems, Eastman Kodak Company, New Haven, CT, USA.
authors.forename: R G
authors.initials: RG
authors.lastname: Chubet
authors.forename: B L
authors.initials: BL
authors.lastname: Brizzard
mesh_terms: D000469:Alkaline Phosphatase / Q000235:genetics; D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002460:Cell Line; D003001:Cloning, Molecular; D003587:Cytomegalovirus / Q000235:genetics; D004247:DNA / Q000235:genetics; D000939:Epitopes / Q000096:biosynthesis / Q000235:genetics*; D015870:Gene Expression; D005822:Genetic Vectors; D006801:Humans; D008969:Molecular Sequence Data; D009842:Oligopeptides; D010455:Peptides / Q000235:genetics* / Q000378:metabolism; D011401:Promoter Regions, Genetic; D011993:Recombinant Fusion Proteins / Q000235:genetics / Q000378:metabolism
chemical_list: D000939:Epitopes; D009842:Oligopeptides; D010455:Peptides; D011993:Recombinant Fusion Proteins; D004247:DNA; C085706:FLAG peptide; D000469:Alkaline Phosphatase