title: Transfer RNA binding protein in the nucleus of Saccharomyces cerevisiae.
abstract: A yeast nuclear protein that binds to tRNA was identified using a RNA mobility shift assay. Northwestern blotting and N-terminal sequencing experiments indicate that this tRNA-binding protein is identical to zuotin which has previously been shown to bind to Z-DNA [(1992) EMBO J. 11, 3787-3796]. Labeled tRNA and poly(dG-m5dC) stabilized in the Z-DNA form identify the same protein on a Northwestern blot. In a gel retardation assay poly(dG-m5dC) in the Z-form strongly diminishes the binding of tRNA to zuotin. These studies establish that zuotin is able to bind to both tRNA and Z-DNA. Zuotin may be transiently associated with tRNA in the nucleus of yeast cells and play a role in its processing or transport to the cytoplasm.
authors.affiliation: Unité Propre de Recherche 9002 du Centre National de la Recherche Scientifique, Institut de Biologie Moléculaire et Cellulaire, Strasbourg, France.
authors.forename: M L
authors.initials: ML
authors.lastname: Wilhelm
authors.forename: J
authors.initials: J
authors.lastname: Reinbolt
authors.forename: J
authors.initials: J
authors.lastname: Gangloff
authors.forename: G
authors.initials: G
authors.lastname: Dirheimer
authors.forename: F X
authors.initials: FX
authors.lastname: Wilhelm
mesh_terms: D000595:Amino Acid Sequence; D002467:Cell Nucleus / Q000378:metabolism*; D002851:Chromatography, High Pressure Liquid; D004247:DNA / Q000378:metabolism; D004268:DNA-Binding Proteins / Q000235:genetics / Q000378:metabolism*; D005656:Fungal Proteins / Q000235:genetics / Q000378:metabolism*; D018832:Molecular Chaperones; D008969:Molecular Sequence Data; D012331:RNA, Fungal / Q000302:isolation & purification*; D012343:RNA, Transfer / Q000302:isolation & purification*; D012441:Saccharomyces cerevisiae / Q000378:metabolism*; D029701:Saccharomyces cerevisiae Proteins
chemical_list: D004268:DNA-Binding Proteins; D005656:Fungal Proteins; D018832:Molecular Chaperones; D012331:RNA, Fungal; D029701:Saccharomyces cerevisiae Proteins; C077019:ZUO1 protein, S cerevisiae; D004247:DNA; D012343:RNA, Transfer