title: Shuttle vectors conferring hygromycin B resistance to E. coli and to mammalian cells. Differential expression of carboxyterminal fusion proteins.
abstract: Shuttle vectors expressing resistance to hygromycin B in both E. coli and in mammalian cells were constructed. A combination of the simian virus 40 early promoter upstream of the native bacterial promoter of the neo gene from transposon Tn5 was found to express hygromycin B resistance better in both types of host cells than a combination of the Tn5 promoter followed by the promoter of the Herpes simplex virus thymidine kinase gene. Hygromycin phosphotransferase fusion proteins with extensions at the carboxyterminus were also tested and found to be marginally less effective as selection markers in eukaryotic cells but virtually inactive in E. coli.
authors.affiliation: Biotechnology Department, CIBA-GEIGY Ltd., Basle, Switzerland.
authors.forename: F A
authors.initials: FA
authors.lastname: Asselbergs
authors.forename: R
authors.initials: R
authors.lastname: Pronk
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D016466:CHO Cells; D006224:Cricetinae; D004251:DNA Transposable Elements; D004274:DNA, Recombinant / Q000235:genetics; D004352:Drug Resistance, Microbial / Q000235:genetics*; D004926:Escherichia coli / Q000187:drug effects / Q000235:genetics; D005798:Genes, Bacterial; D005819:Genetic Markers; D005822:Genetic Vectors; D006921:Hygromycin B / Q000494:pharmacology*; D008969:Molecular Sequence Data; D010770:Phosphotransferases / Q000235:genetics; D017853:Phosphotransferases (Alcohol Group Acceptor); D010957:Plasmids; D011401:Promoter Regions, Genetic; D011993:Recombinant Fusion Proteins / Q000235:genetics
chemical_list: D004251:DNA Transposable Elements; D004274:DNA, Recombinant; D005819:Genetic Markers; D011993:Recombinant Fusion Proteins; D006921:Hygromycin B; D010770:Phosphotransferases; D017853:Phosphotransferases (Alcohol Group Acceptor); C063242:hygromycin-B kinase