Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

RNA-seq of Yra1 associated mRNAs

ABSTRACT: Gene expression results from mRNA - RNA-binding protein (RBP) interactions within messenger ribonucleoprotein (mRNP) particles. We identified heterogeniety of nuclear mRNP composition involved in mRNA biogenesis and export with different occupancy and stoichiometry of RNA-binding proteins. Especially, mRNA export adopter protein Yra1 showed large variation of its stoichiometry on single mRNPs. We identified stoichiometry of Yra1 in the nuclear cap binding complex (Cbp80) bound mRNPs and it can be dissected into two categories (one and multiple Yra1 bound mRNPs). Multiple Yra1 containing mRNPs specifically co-occupied with THO complex (Hpr1). To investigate gene dependency to form different Yra1 stoichiometry mRNPs, we performed RNA-IP experiment for Yra1 with two step purification by Cbp80/Yra1 and Hpr1/Yra1.

ORGANISM(S): Saccharomyces cerevisiae

PROVIDER: GSE226972 | GEO | 2024/02/14

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

ChIP-chip data of HA-Yra1 and Rrm3-Flag in wild-type and cells overexpressing YRA1

Project description:Transcription is a major obstacle for replication fork progression and a cause of genome instability. Yra1 is an essential nuclear factor of the evolutionarily conserved family of hnRNP-like export factors that when overexpressed impairs mRNA export and cell growth. Through this ChIP-chip analysis it is shown that Yra1 binds to active chromatin and is enriched at telomeres when it is overexpressed, in agreement with a possible role of this mRNP factor in the maintenance of telomere integrity. Our data indicate that YRA1 overexpression correlates with replication impairment as inferred by the increase of Rrm3, a helicase involved in the replication fork progression, at transcribed genes and telomeres.

2016-03-11 | GSE68486 | GEO

ChIP-chip data of HA-Yra1 and Rrm3-Flag in wild-type and cells overexpressing YRA1

2016-03-11 | E-GEOD-68486 | biostudies-arrayexpress

Transcriptome maps of mRNP biogenesis factors define pre-mRNA recognition

Project description:Biogenesis of eukaryotic messenger ribonucleoprotein complexes (mRNPs) involves the synthesis, splicing, and 3M-bM-^@M-^Y-processing of pre-mRNA, and the assembly of mature mRNPs for nuclear export. We mapped 23 mRNP biogenesis factors onto the newly synthesized yeast transcriptome, providing ~10^5-10^6 high-confidence RNA interaction sites per factor. PAR-CLIP data of 23 mRNP biogenesis factors in Saccharomyces cerevisiae

2014-07-23 | E-GEOD-59676 | biostudies-arrayexpress

Transcriptome maps of mRNP biogenesis factors define pre-mRNA recognition

Project description:Biogenesis of eukaryotic messenger ribonucleoprotein complexes (mRNPs) involves the synthesis, splicing, and 3’-processing of pre-mRNA, and the assembly of mature mRNPs for nuclear export. We mapped 23 mRNP biogenesis factors onto the newly synthesized yeast transcriptome, providing ~10^5-10^6 high-confidence RNA interaction sites per factor.

2014-07-23 | GSE59676 | GEO

Transcription profiling of four yeast strains grown in SC medium and shifted for 2.5h to 37C: YRA1 wild type, YRA1 mlp2916; GFP-yra1-8, and GFP-yra1-8 mlp2916

Project description:Comparison of mRNA levels in four yeast strains grown in SC medium and shifted for 2.5h to 37C: YRA1 wild-type, YRA1 mlp2Δ GFP-yra1-8, and GFP-yra1-8 mlp2Δ

2004-12-31 | E-MEXP-130 | biostudies-arrayexpress

total RNA from yra1-1 at 37C vs. Yra1 WT at 37C (yra1-1TS_v_Yra1WT)

Project description:Comparison of cDNA from RNA of yra1-1 temperature-sensitive mutant to RNA from Yra1 wildtype strain both at the non-permissive temperature of 37C Keywords: repeat sample

2002-11-25 | GSE104 | GEO

Yra1-bound R loops cause orientation-independent transcription-replication collisions and telomere instability

Project description:R loops are an important source of genome instability largely due to its negative impact on replication progression. Yra1/ALY is an abundant RNA-binding factor conserved from yeast to humans and required for mRNA export, but its excess cause lethality and genome instability. Here, we show that Yra1 binds RNA-DNA hybrids in vitro and when artificially overexpressed is recruited to chromatin in an RNA-DNA hybrid-dependent manner stabilizing R loops and converting them into replication obstacles in vivo. Importantly, excess of Yra1 increases R loop-mediated genome instability caused by transcription-replication collisions regardless of whether they are co-directional or head-on. It also induces telomere shortening and senescence, consistent with a defect in telomere replication. Our results indicate that R loops form transiently in cells regardless of replication and, after stabilization by excess Yra1, they compromise genome integrity, in agreement with a two-step model of R loop-mediated genome instability. This work opens new perspectives to understand transcription-associated genome instability in repair-deficient cells, including tumoral cells.

2018-06-27 | GSE113580 | GEO

RIP-seq analysis of Isw1 interacting transcripts

Project description:This experiment captures the poly(A)RNAs co-immunoprecipated with Isw1 in WT and npl3-1 cells. Chromatin remodelers play an essential role in regulating DNA transaction processes. The yeast chromatin remodeling complex ISW1 displays an unexpected function in nuclear mRNP surveillance, retaining premature mRNPs in proximity to their transcription site. This activity of ISW1 requires its recruitment onto chromatin, its interaction with mRNPs but not its nucleosome sliding activity. In npl3-1 cells, mRNA export is compromised resulting in an increased association of mRNAs with Isw1.

2016-11-17 | E-MTAB-4826 | biostudies-arrayexpress

Budding yeast mRNA export and processing factor localization

Project description:The yeast mRNA export adaptor Yra1 binds the Pcf11 subunit of cleavage-polyadenylation factor CF1A linking export to 3'-end formation. We found a surprising consequence of this interaction is that Yra1 influences cleavage-polyadenylation. Yra1 competes with the CF1A subunit, Clp1, for binding to Pcf11, and excess Yra1 inhibits 3' processing in vitro. Release of Yra1 at the 3' ends of genes coincides with recruitment of Clp1, and depletion of Yra1 enhances Clp1 recruitment within some genes. These results suggest that CF1A is not necessarily recruited as a complete unit, but instead Clp1 can be incorporated co-transcriptionally in a process regulated by Yra1. Yra1 depletion causes widespread changes in poly(A) site choice particularly at sites where the efficiency element is divergently positioned. We propose that one way Yra1 modulates cleavage-polyadenylation is by influencing co-transcriptional assembly of the CF1A/B 3' processing factor. Key Words: Yra1, cleavage-polyadenylation, mRNA export, Pcf11, Clp1, Sub2, alternative polyadenylation

2011-09-25 | GSE30705 | GEO

Budding yeast mRNA poly(A) site mapping

2011-09-25 | GSE30703 | GEO