AChIP: efficient, sensitive, robust ChIP-seq for economically important plant organs [ChIP-Seq]
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1020082 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR26146505_1.fastq.gz | Fastqsanger.gz | |||
| SRR26146505_2.fastq.gz | Fastqsanger.gz | |||
| SRR26146506_1.fastq.gz | Fastqsanger.gz | |||
| SRR26146506_2.fastq.gz | Fastqsanger.gz | |||
| SRR26146507_1.fastq.gz | Fastqsanger.gz |
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Project description:aChIP: efficient, sensitive, robust ChIP-seq for economically important plant organs
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Project description:Chromatin immunoprecipitation followed by sequencing (ChIP-seq) is crucial for profiling histone modifications and transcription factor binding throughout the genome. However, its application in economically important plant organs (EIPOs) such as seeds, fruits and flowers is challenging due to their sturdy cell walls and complex constituents. Here we present advanced ChIP (aChIP), an optimized method that efficiently isolates chromatin from plant tissues while simultaneously removing cell walls and cellular constituents. aChIP precisely profiles histone modifications in all 14 tested EIPOs and identifies transcription factor and chromatin-modifying enzyme binding sites. In addition, aChIP enhances ChIP efficiency, revealing numerous novel modified sites compared with previous methods in vegetative tissues. aChIP reveals the histone modification landscape for rapeseed dry seeds, highlighting the intricate roles of chromatin dynamics during seed dormancy and germination. Altogether, aChIP is a powerful, efficient and sensitive approach for comprehensive chromatin profiling in virtually all plant tissues, especially in EIPOs.
2024-04-28 | GSE243806 | GEO
Project description:Chromatin immunoprecipitation followed by sequencing (ChIP-seq) is a powerful method for profiling histone modifications and transcription factors binding throughout the genome. However, its application in economically important plant organs (EIPOs) such as seeds, fruits, tubers and flowers is challenging due to their sturdy cell walls and complex constituents. Here, we present advanced ChIP (aChIP), an optimized ChIP-seq strategy that efficiently isolates chromatin from plant tissues while simultaneously removing plant cell walls and cellular constituents. aChIP enables precise profiling of histone modifications in all tested EIPOs as well as transcription factors and chromatin-modifying enzymes. Notably, it significantly enhances ChIP efficiency and uncovers numerous novel modified sites compared to previous methods in vegetativetissues. Remarkably, aChIP unveils the first histone modification landscape of dry rapeseed seeds, illuminating the intricate roles of histone marks in EIPOs. Together, aChIP is a potent, efficient, and sensitive approach for comprehensive chromatin protein profiling across virtually all plant tissues, advancing plant epigenomics and functional genomics research, particularly within EIPOs.
2024-04-28 | GSE243804 | GEO
Project description:Chromatin immunoprecipitation followed by sequencing (ChIP-seq) is a powerful method for profiling histone modifications and transcription factors binding throughout the genome. However, its application in economically important plant organs (EIPOs) such as seeds, fruits, tubers and flowers is challenging due to their sturdy cell walls and complex constituents. Here, we present advanced ChIP (aChIP), an optimized ChIP-seq strategy that efficiently isolates chromatin from plant tissues while simultaneously removing plant cell walls and cellular constituents. aChIP enables precise profiling of histone modifications in all tested EIPOs as well as transcription factors and chromatin-modifying enzymes. Notably, it significantly enhances ChIP efficiency and uncovers numerous novel modified sites compared to previous methods in vegetativetissues. Remarkably, aChIP unveils the first histone modification landscape of dry rapeseed seeds, illuminating the intricate roles of histone marks in EIPOs. Together, aChIP is a potent, efficient, and sensitive approach for comprehensive chromatin protein profiling across virtually all plant tissues, advancing plant epigenomics and functional genomics research, particularly within EIPOs.
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Project description:Proteotoxicity from insufficient clearance of misfolded/damaged proteins underlies many diseases. Carboxyl terminus of Hsc70-interacting protein (CHIP) is an important regulator of proteostasis in many cells, having E3-ligase and chaperone functions and often directing damaged proteins towards proteasome recycling. While enhancing CHIP functionality has broad therapeutic potential, prior efforts have all relied on genetic upregulation. Here we demonstrate that CHIP-mediated protein turnover is markedly post-translationally enhanced by direct protein kinase G (PKG) phosphorylation at S20 (mouse, S19 human). This increases CHIP binding affinity to Hsc70, CHIP protein halflife, and consequent clearance of stress-induced ubiquitinated-insoluble proteins. PKGmediated CHIP-pS20 or expressing CHIP-S20E (phosphomimetic) reduces ischemic proteo- and cytotoxicity, whereas a phospho-silenced CHIP-S20A amplifies both. In vivo, depressing PKG activity lowers CHIP-S20 phosphorylation and protein, exacerbating proteotoxicity and heart dysfunction after ischemic injury. CHIP-S20E knock-in mice better clear ubiquitinated proteins and are cardio-protected. PKG activation provides post-translational enhancement of protein quality control via CHIP.
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