title: Transfection and transient expression of chloramphenicol acetyltransferase gene in the protozoan parasite Entamoeba histolytica.
abstract: Hybrid plasmids were constructed and used for successful transfection and transient expression of the chloramphenicol acetyltransferase (CAT) gene in the protozoan parasite Entamoeba histolytica. Transfection was performed by electroporation of the amebae in a potassium phosphate-based buffer under conditions of 3000 V/cm and 25 microF, resulting in a time constant of 0.4 ms. Expression of CAT activity was achieved with constructs in which the CAT coding region was flanked by untranslated upstream and downstream sequences of E. histolytica genes. Highest activity was detected after culturing transfected cells for 48 hr. Activity was found to be proportional to the amount of DNA transfected.
authors.affiliation: Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Nickel
authors.forename: E
authors.initials: E
authors.lastname: Tannich
mesh_terms: D000818:Animals; D001483:Base Sequence; D015500:Chloramphenicol O-Acetyltransferase / Q000235:genetics* / Q000378:metabolism; D003001:Cloning, Molecular; D017931:DNA Primers; D004748:Entamoeba histolytica / Q000235:genetics*; D005786:Gene Expression Regulation; D008969:Molecular Sequence Data; D011994:Recombinant Proteins; D014162:Transfection
chemical_list: D017931:DNA Primers; D011994:Recombinant Proteins; D015500:Chloramphenicol O-Acetyltransferase