Chromatin-associated proteome S. cerevisiae
Ontology highlight
ABSTRACT:
OTHER RELATED OMICS DATASETS IN: MODEL1109130000MODEL1311110000MODEL1909260003MODEL1311110001MODEL1909260004MODEL1703310000MODEL1909260005MODEL1909260006
INSTRUMENT(S): Q Exactive
ORGANISM(S): Saccharomyces Cerevisiae (baker's Yeast)
SUBMITTER: 
Francisco Navarro
LAB HEAD: Dr. Francisco Navarro
PROVIDER: PXD009264 | Pride | 2019-07-17
REPOSITORIES: Pride
Similar Datasets
Project description:Here, we use LC-MSMS and SWATH-MS to describe the kinetics of in vitro assembled chromatin supported by an embryo extract prepared from preblastoderm Drosophila melanogaster embryos. This system allows easy manipulation of distinct aspects of chromatin assembly such as post-translational histone modifications, the levels of histone chaperones and the concentration of distinct DNA binding factors. Our findings support the idea that chromatin assembly factors and factors important for chromatin structure bind chromatin an ordered manner, which is -at least in part- regulated by histone deacetylation.
2016-01-27 | PXD003445 | Pride
Project description:Profiling the chromatin-bound proteome (chromatome) in a simple, direct, and reliable manner might be key to uncovering the role of yet uncharacterized chromatin factors in physiology and disease. Here, we have design an experimental strategy to survey the chromatome of proliferating cells by using the DNA-mediated chromatin pull-down technology (Dm-ChP). Our approach provides a global view of cellular chromatome in normal physiological conditions and enables the identification of chromatin-bound proteins de novo. Integrating Dm-ChP with genomic and functional data, we have discovered an unexpected chromatin function for adenosylhomocysteinase (AHCY), a major one-carbon pathway metabolic enzyme, in gene activation. Our study reveals a new regulatory axis between the metabolic state of pluripotent cells, ribosomal protein production, and cell division during early phase of embryo development, in which the metabolic flux of methylation reactions is favored in a local milieu
2019-03-13 | PXD011670 | Pride
Project description:Mass spectrometry analysis of chromatin-containing GFP-H2A.Bbd revealed an high enrichment of factors associated to replication compared to GFP-macroH2A.1.2 and GFP-H2A.
2014-05-18 | PXD000789 | Pride
Project description:Chromatin organization must be maintained during cell proliferation to preserve cellular identity and genome integrity. However, DNA replication results in transient displacement of DNA bound proteins, and it is unclear how they regain access to newly replicated DNA. Using quantitative MS-based proteomics coupled to Nascent Chromatin Capture, we provide time resolved binding kinetics for thousands of proteins behind replisomes of mid-S replicated regions. This shows that most proteins regain access within the first 15 minutes after the passage of the fork. In contrast, 25% of the identified proteins do not, and this delay cannot be inferred from their known function, physicochemical properties, or nuclear abundance. A sample treated with nocodazole to block the cell cycle progression. The comparison between a normal cell cycle progression and a nocodazole treated sample shows that the reassociation onto chromatin of proteins with a delayed restoration can be regulated by the cell cycle progression and/or the post-replication time. In addition, we provide evidence that DNA replication not only disrupts but also promotes recruitment of transcription factors and chromatin remodellers, providing a significant advance in understanding how DNA replication could contribute to programmed changes of cell memory. Data available in this entry are related with the supplementary table 5 from our manuscript.
2023-02-02 | PXD038113 | Pride
Project description:Drosophila preblastoderm embryo extract assisted chromatin assembly with or without 16mer DNA mimic. Pull down of chromatin fiber to reveal chromatin binders in the system.
2023-09-07 | PXD039966 | Pride
Project description:Chromatin organization must be maintained during cell proliferation to preserve cellular identity and genome integrity. However, DNA replication results in transient displacement of DNA bound proteins, and it is unclear how they regain access to newly replicated DNA. Using quantitative MS-based proteomics coupled to Nascent Chromatin Capture, we provide time resolved binding kinetics for thousands of proteins behind replisomes within euchromatin and heterochromatin in human cells. This shows that most proteins regain access within the first 15 minutes after the passage of the fork. In contrast, 30% of the identified proteins do not, and this delay cannot be inferred from their known function, physicochemical properties, or nuclear abundance. Instead, differential chromatin organization affect their reassociation. We provide evidence that DNA replication not only disrupts but also promotes recruitment of transcription factors and chromatin remodellers, providing a significant advance in understanding how DNA replication could contribute to programmed changes of cell memory.We include here a reference to link the data with our manuscript:Tables SUPP1 and SUPP2:NCC data: PT7988 (Bio-rep1), PT8242 (Bio-rep2), PT8243 (Bio-rep3). 1-24 (24 high-pH RPLC fractions from TMT labeled peptides)Nuclear fraction data: PT7988 (Bio-rep1), PT8242 (Bio-rep2), PT8243 (Bio-rep3). 25-48 (24 high-pH RPLC fractions from TMT labeled peptides)Tables SUPP3-5:NCC data: PT9825 (Bio-rep1), PT9825 (Bio-rep2), PT9825 (Bio-rep3). (11-34, 35-58, 59-82) (24 high-pH RPLC fractions from TMT labeled peptides)Nuclear fraction data: PT9825 (Bio-rep1), PT9825 (Bio-rep2), PT9825 (Bio-rep3). (83-106, 107-130, 131-154). (24 high-pH RPLC fractions from TMT labeled peptides)
2023-02-02 | PXD035489 | Pride
Project description:The structure of chromatin is critical for many aspects of cellular physiology and is considered to be the primary medium to store epigenetic information. It is defined by the histone molecules that constitute the nucleosome, the positioning of the nucleosomes along the DNA and the non-histone proteins that associate with it. These factors help to establish and maintain a largely DNA sequence-independent but surprisingly stable structure. Chromatin is extensively disassembled and reassembled during DNA replication, repair, recombination or transcription in order to allow the necessary factors to gain access to their substrate. Despite such constant interference with chromatin structure, the epigenetic information is generally well maintained. Surprisingly, the mechanisms that coordinate chromatin assembly and ensure proper assembly are not particularly well understood. Here, we use SWATH-MS to describe the kinetics of in vitro assembled chromatin supported by an embryo extract prepared from preblastoderm Drosophila melanogaster embryos. This system allows easy manipulation of distinct aspects of chromatin assembly such as post-translational histone modifications, the levels of histone chaperones and the concentration of distinct DNA binding factors. Our findings support the idea that chromatin assembly factors and factors important for chromatin structure bind chromatin in an ordered manner, which is -at least in part- regulated by histone deacetylation. We are able to identify functional clusters of proteins based on their different binding kinetics. Whereas many proteins bind exclusively during the onset of chromatin assembly, a few proteins show a clear tendency towards matured chromatin.
2016-01-27 | PXD002537 | Pride
Project description:ABI3 is a key regulator of seed development in Arabidopsis and other plants.To identify DNA fragments (promoters) bound by ABI3 we performed array based ChIP analysis. Five ChIP-chip experiments were performed with chromatin of seeds of Arabidopsis and an anti-ABI3 antibody directed against a N-terminal fragment of ABI3, raised in rabbits. Non precipitated chromatin (input) served as control.
2012-05-31 | E-GEOD-34041 | biostudies-arrayexpress
Project description:Drosophila X chromosomes are subject to dosage compensation in males and are known to have a specialized chromatin structure in the male soma. We are interested in how specific chromatin structure change contributes to X chromosome hyperactivity and dosage compensation. We have conducted a global analysis of localize two dosage compensation complex dependent histone marks H4AcK16 and H3PS10 and one dosage compensation complex independent histone mark H3diMeK4 in the genome, especially on X chromosome by ChIP-chip approach in both male and female adult flies. We also probed general genomewide chromatin structure by deep DNA sequencing of sheared ChIP input DNA from male and female adult flies. Chromatin immunoprecipitations were performed in 5-7 day aged adult male and female flies with three histone modification antibodies. ChIP enriched DNA and input DNA was labeled by Cy3 or Cy5 dye separately and hybridized simultaneously to the Drosophila FlyGEM arrays. At least two biological replicates were performed for each antibody and sex. DNA-seq (NIDDK-Drosophila-Illumina-DNASeq) were performed on ChIP-input sheared DNA to check the general chromatin structure of different chromosome.
2010-01-11 | E-GEOD-15593 | biostudies-arrayexpress
Project description:Chromatin organization must be maintained during cell proliferation to preserve cellular identity and genome integrity. However, DNA replication results in transient displacement of DNA bound proteins, and it is unclear how they regain access to newly replicated DNA. Using quantitative MS-based proteomics coupled to isolation of proteins on nascent DNA (iPOND), we provide time resolved binding kinetics for thousands of proteins behind replisomes in the lung fibroblast cell line TIG-3 (JCRB0506, JCRB Cell Bank). Performing hierarchical clustering, we identified four groups of protein behaviour: Transient enriched on nascent, restored within 11min, peaking in G2/M, and delayed restored. Overall, our data show that most proteins (85%) regain access within the first 2h after the passage of the fork. Only a small percentage of proteins is restored after 2h post-replication, with 5.3 % of factors peaking in G2/M and 9.1% factors not restored before the next G1 phase. We provide evidence that DNA replication not only disrupts but also promotes recruitment of transcription factors and chromatin remodelers, providing a significant advance in understanding how DNA replication could contribute to programmed changes of cell memory.
2023-02-02 | PXD036236 | Pride