title: Monitoring mRNA export.
abstract: Transport of mRNA from the nucleus to the cytoplasm is an essential process for gene expression in eukaryotic cells. In this unit, methods for monitoring nuclear mRNA export are described. Visualization of cellular mRNAs by fluorescence in situ hybridization with oligo(dT) probes is effectively applied to monitoring mRNA export from the nucleus in yeast and mammalian cells. In addition to the protocols for fluorescence in situ hybridization, this unit includes an alternate method that the authors have been developing for visual analysis of nuclear mRNA export in living mammalian cells by microinjection of fluorescently labeled pre-mRNA into the nuclei.
authors.affiliation: Department of Biological Sciences, Graduate School of Science and Technology, Kumamoto University, Kurokami, Kumamoto, Japan.
authors.forename: Kazuaki
authors.initials: K
authors.lastname: Tokunaga
authors.forename: Tokio
authors.initials: T
authors.lastname: Tani
mesh_terms: D021581:Active Transport, Cell Nucleus; D002467:Cell Nucleus / Q000235:genetics / Q000378:metabolism*; D003593:Cytoplasm / Q000235:genetics / Q000378:metabolism; D006367:HeLa Cells; D006801:Humans; D017404:In Situ Hybridization, Fluorescence / Q000379:methods*; D008845:Microinjections / Q000379:methods*; D034443:RNA Transport; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D015003:Yeasts / Q000235:genetics / Q000378:metabolism*
chemical_list: D012333:RNA, Messenger