title: Metal-inducible activities of metallothionein promoters in fish cells and fry.
abstract: Activities of trout metallothionein-A promoter and mouse metallothionein-I promoter in fish cells and fry were examined using the chloramphenicol acetyltransferase (CAT) gene as a reporter. Transfection and transient CAT assays on a trout liver cell line indicated that both promoters were inducible by metals, including zinc. In vivo activities of both promoters were examined using microinjection system into medaka eggs. Some of the hatched fry were exposed to zinc and their CAT activities were assayed. Both promoters revealed considerable activities after exposure to zinc while only weak activities were detected in unexposed fry.
authors.affiliation: Central Research Laboratory, Nippon Suisan Kaisha, Ltd., Tokyo, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Inoue
authors.forename: N
authors.initials: N
authors.lastname: Akita
authors.forename: T
authors.initials: T
authors.lastname: Shiba
authors.forename: M
authors.initials: M
authors.lastname: Satake
authors.forename: S
authors.initials: S
authors.lastname: Yamashita
mesh_terms: D000818:Animals; D002460:Cell Line; D015500:Chloramphenicol O-Acetyltransferase / Q000235:genetics / Q000378:metabolism; D007700:Kinetics; D008099:Liver / Q000502:physiology*; D008668:Metallothionein / Q000235:genetics*; D008670:Metals / Q000494:pharmacology*; D051379:Mice; D010957:Plasmids; D011401:Promoter Regions, Genetic / Q000187:drug effects*; D011994:Recombinant Proteins / Q000378:metabolism; D015183:Restriction Mapping; D014162:Transfection; D014337:Trout; D015032:Zinc / Q000494:pharmacology
chemical_list: D008670:Metals; D011994:Recombinant Proteins; D008668:Metallothionein; D015500:Chloramphenicol O-Acetyltransferase; D015032:Zinc