Take our Survey

Reference: Thomsen R, et al. (2008) General, rapid, and transcription-dependent fragmentation of nucleolar antigens in S. cerevisiae mRNA export mutants. RNA 14(4):706-16

Reference Help

Abstract

In the yeast Saccharomyces cerevisiae, mutation of some effectors of mRNA nuclear export leads to the rapid accumulation of HSP104 RNA in transcription site-associated foci. We have screened the S. cerevisiae complement of viable gene deletion mutants for their inability to export HSP104 RNA. The 15 strains identified comprise deletions of components of the THO, Thp1p/Sac3p, and nuclear pore complexes. In all three mutant classes, retained RNA overlaps the HSP104 transcription site. Thus, an early block to HSP104 RNA export is general. Incubation of the identified deletion strains, as well as seven additional mutants, under conditions where mRNA export is blocked results in rapid dissipation of nucleolar protein and RNA constituents. Time course experiments show that dissipation of nucleolar antigens succeeds mRNA retention and is reversed when the load of nuclear mRNA ceases. Consistent with a causal role of excess nuclear mRNA, nucleolar morphology in an mRNA export mutant environment remains intact when transcription by RNA polymerase II is inhibited.

Reference Type
Journal Article
Authors
Thomsen R, Saguez C, Nasser T, Jensen TH
Primary Lit For
Additional Lit For
Review For

Interaction Annotations

Increase the total number of rows showing on this page by using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table; click on the small "i" buttons located within a cell for an annotation to view further details about experiment type and any other genes involved in the interaction.

Interactor Interactor Type Assay Annotation Action Modification Phenotype Source Reference

Gene Ontology Annotations

Increase the total number of rows showing on this page using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table.

Gene Gene Ontology Term Qualifier Aspect Method Evidence Source Assigned On Annotation Extension Reference

Phenotype Annotations

Increase the total number of rows showing on this page using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table; click on the small "i" buttons located within a cell for an annotation to view further details.

Gene Phenotype Experiment Type Mutant Information Strain Background Chemical Details Reference

Regulation Annotations

Increase the total number of rows displayed on this page using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; to filter the table by a specific experiment type, type a keyword into the Filter box (for example, “microarray”); download this table as a .txt file using the Download button or click Analyze to further view and analyze the list of target genes using GO Term Finder, GO Slim Mapper, SPELL, or YeastMine.

Regulator Target Experiment Assay Construct Conditions Strain Background Reference