The global gene expression pattern by YDR374C deletion
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ABSTRACT:
ORGANISM(S): Saccharomyces cerevisiae
PROVIDER: GSE50086 | GEO | 2013/08/23
SECONDARY ACCESSION(S): PRJNA215985
REPOSITORIES: GEO
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Project description:The Ydr374c is the only protein that has the YTH domain in Saccharomyces cerevisiae. The YTH domain was identified by comparing all known protein sequences with the YT521-B splicing factor, and it is found only in eukaryotes. Recently, it has been reported that the YTH domain conveys RNA-binding ability to a new class of proteins. However, the roles of most YTH family members lacking common sequence motifs outside the YTH domain are unknown. Therefore, to investigate the function of Ydr374c, microarray analysis was performed using the wild-type and YDR374C deletion strains. For the microarray analysis, wild-type and YDR374C deletion strains were cultured in SD medium and harvested at the mid-exponential phase (OD600=0.7), and total RNA was extracted.
2013-08-23 | E-GEOD-50086 | biostudies-arrayexpress
Project description:N6-methyladenosine (m6A) in mRNA is key to eukaryotic gene regulation. Many m6A functions involve RNA-binding proteins that recognize m6A via a YT521-B Homology (YTH) domain. YTH domain proteins contain long intrinsically disordered regions (IDRs) that may mediate phase separation and interaction with protein partners, but whose precise biochemical functions remain largely unknown. The Arabidopsis thaliana YTH domain proteins ECT2, ECT3 and ECT4 accelerate organogenesis through stimulation of cell division in organ primordia. Here, we use ECT2 to reveal molecular underpinnings of this function. We show that stimulation of leaf formation requires the long N-terminal IDR, and we identify two short IDR-elements required for ECT2-mediated organogenesis. Of these two, a 19-amino acid region containing a tyrosine-rich motif conserved in both plant and metazoan YTHDF proteins is necessary for binding to the major cytoplasmic poly(A)-binding proteins PAB2, PAB4 and PAB8. Remarkably, overexpression of PAB4 in leaf primordia partially rescues the delayed leaf formation in ect2 ect3 ect4 mutants, suggesting that the ECT2-PAB2/4/8 interaction on target mRNAs of organogenesis-related genes may overcome limiting PAB concentrations in primordial cells.
2023-11-28 | PXD045801 | Pride
Project description:The N6-methyladenosine (m6A) is the most abundant internal modification in almost all eukaryotic messenger RNAs, and is dynamically regulated. Therefore, identification of m6A readers is especially important in determining the cellular function of m6A. YTHDF2 has recently been characterized as the first m6A reader that regulates the cytoplasmic stability of methylated RNA. Here we show that YTHDC1 is a nuclear m6A reader and report the crystal structure of the YTH domain of YTHDC1 bound to m6A-containing RNA. We further determined the structure of another YTH domain, YTHDF1, and found that the YTH domain utilizes a conserved aromatic cage to specifically recognize the methyl group of m6A. Our structural characterizations of the YTHDC1-m6A RNA complex also shed light on the molecular basis for the preferential binding of the GG(m6A)C sequence by YTHDC1 and confirm the YTH domain as a specific m6A RNA reader. PAR-CLIP (Photoactivatable-Ribonucleoside-Enhanced Crosslinking and Immunoprecipitation) was applied to human YTHDC1 protein to identify its binding sites.
2014-09-18 | E-GEOD-58352 | biostudies-arrayexpress
Project description:N6-methyladenosine (m6A) is the most common internal modification in eukaryotic messenger RNA (mRNA). The effects of this reversible cheimcal modification are mediated in part by methyl-specific RNA binding protein 'readers' of the YTH family. In this study we present the function of YTHDC1 (YT521) in promoting the export of mRNA from the nucleus to the cytoplasm. Additionally, we identify a role for YTHDC1 in exon retention in mouse embryonic stem cells (mESCs).
2017-10-12 | GSE74397 | GEO
Project description:N6-methyladenosine (m6A) is the most prevalent internal modification present in the mRNA of all higher eukaryotes. Here we present that m6A is selectively recognized by human YTH domain family (YTHDF2) protein to regulate mRNA degradation. By using crosslinking and immunoprecipitation, we have identified over 4000 substrate RNA of YTHDF2 with conserved core motif of G(m6A)C. We further estabilshed the role of YTHDF2 in RNA metabolism by a combination of ribosome profiling, RNA sequencing, m6A level quantification and cell-based imaging: the C-terminal domain of YTHDF2 selectively binds to m6A of mRNA and the N-terminal domain is responsive for localizing mRNA from translatable pool to processing body where mRNA decay occurs. PAR-CLIP and RIP was used to identify YTHDF2 binding sites followed by ribosome profling and RNA seq to assess the consequences of YTHDF2 siRNA knock-down
2013-11-29 | E-GEOD-49339 | biostudies-arrayexpress
Project description:N6-methyladenosine (m6A) has recently emerged as a widespread and conserved RNA modification that modulates messenger RNA (mRNA) processing and activity. As most m6A studies have been conducted in cultured cells, we established Drosophila as a model system that combines molecular and genomic analyses of m6A with investigations of organismal biology. We first apply miCLIP sequencing to map m6A modifications at single-nucleotide resolution during Drosophila embryogenesis. We next characterize Drosophila components of the m6A "writer" methyltransferase complex [MTC factors, METTL3/IME4, METTL14, FL(2)D and Nito], and characterize m6A-binding properties of the YTH domain-containing proteins, YT521-B and CG6422. We complement this by generating a collection of mutants in m6A writer and reader components. While Drosophila orthologs of mammalian MTC factors that have additional roles in splicing are lethal, our mutants in METTL and YTH factors are viable but present specific developmental and behavioral defects. We note that several mammalian m6A factors were originally identified as Drosophila regulators of Sxl splicing, which generates the master determinant of female identity. While our mutants in dedicated writer and reader machinery are not required to accumulate Sxl protein in the ovary, maternal loss of m6A writers and readers collaborates with reduction of Sxl to induce female lethality. Our data indicate Sxl is directly regulated by the m6A pathway, since miCLIP data show Sxl is a substantial target of intronic m6A in early embryos, in addition to bearing exonic m6A. Consistent with this, female-specific Sxl splicing is defective in m6A pathway mutants. YT521-B appears to be the major effector of m6A for Sxl regulation, as it shows much stronger genetic interactions with Sxl than CG6422 and YT521-B overexpression can induce female-specific Sxl splicing. Overall, our transcriptomic and genetic toolkit for studying the m6A pathway in Drosophila reveals a major biological utilization in establishing sex-specific splicing.
2017-04-22 | GSE97004 | GEO
Project description:Interest in mRNA methylation has exploded in recent years. The sudden interest in a 40 year old discovery was due in part to the recent finding of FTO?s (Fat Mass Obesity) N6-methyl-adenosine (m6A) deaminase activity, thus suggested a link between obesity-associated diseases and the presence of m6A in mRNA. Another catalyst of the sudden rise in mRNA methylation research was the release of mRNA methylomes for human, mouse and Saccharomyces cerevisiae. However, the molecular function, or functions of this mRNA ?epimark? remain to be discovered. There is supportive evidence that m6A could be a mark for mRNA degradation due to its binding to YTH domain proteins, and consequently being chaperoned to P bodies. Nonetheless, only a subpopulation of the methylome was found binding to YTHDF2 in HeLa cells. The model organism Saccharomyces cerevisiae, has only one YTH domain protein (Pho92, Mrb1), which targets PHO4 transcripts for degradation under phosphate starvation. However, mRNA methylation is only found under meiosis inducing conditions, and PHO4 transcripts are apparently non-methylated. In this paper we set out to investigate if m6A could function alternatively to being a degradation mark in S. cerevisiae, we also sought to test whether it can be induced under non-standard sporulation conditions. We find associations between the presence of m6A and message translatability. We also find m6A induction following prolonged rapamycin treatment. GeneChip analyses were performed to investigate the distribution of early meiotic transcripts (3hours) on different polysome and monosome fractions
2015-08-12 | E-GEOD-68435 | biostudies-arrayexpress
Project description:N6-methyladenosine (m6A) is the most prevalent internal modification present in the mRNA of all higher eukaryotes. Here we present that m6A is selectively recognized by human YTH domain family (YTHDF2) protein to regulate mRNA degradation. By using crosslinking and immunoprecipitation, we have identified over 4000 substrate RNA of YTHDF2 with conserved core motif of G(m6A)C. We further estabilshed the role of YTHDF2 in RNA metabolism by a combination of ribosome profiling, RNA sequencing, m6A level quantification and cell-based imaging: the C-terminal domain of YTHDF2 selectively binds to m6A of mRNA and the N-terminal domain is responsive for localizing mRNA from translatable pool to processing body where mRNA decay occurs.
2013-11-29 | GSE49339 | GEO
Project description:Mmi1 is a YTH domain containing protein. We used Solexa Deep Sequencing to identify the mRNas and lncRNAs specifically associated to Mmi1.
2017-07-27 | GSE90688 | GEO
Project description:Interest in mRNA methylation has exploded in recent years. The sudden interest in a 40 year old discovery was due in part to the recent finding of FTO?s (Fat Mass Obesity) N6-methyl-adenosine (m6A) deaminase activity, thus suggested a link between obesity-associated diseases and the presence of m6A in mRNA. Another catalyst of the sudden rise in mRNA methylation research was the release of mRNA methylomes for human, mouse and Saccharomyces cerevisiae. However, the molecular function, or functions of this mRNA ?epimark? remain to be discovered. There is supportive evidence that m6A could be a mark for mRNA degradation due to its binding to YTH domain proteins, and consequently being chaperoned to P bodies. Nonetheless, only a subpopulation of the methylome was found binding to YTHDF2 in HeLa cells. The model organism Saccharomyces cerevisiae, has only one YTH domain protein (Pho92, Mrb1), which targets PHO4 transcripts for degradation under phosphate starvation. However, mRNA methylation is only found under meiosis inducing conditions, and PHO4 transcripts are apparently non-methylated. In this paper we set out to investigate if m6A could function alternatively to being a degradation mark in S. cerevisiae, we also sought to test whether it can be induced under non-standard sporulation conditions. We find associations between the presence of m6A and message translatability. We also find m6A induction following prolonged rapamycin treatment.
2015-08-12 | GSE68435 | GEO