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Nuclear Pyruvate Dehydrogenase Complex regulates EIN2-directed Histone Acetylation and Transcriptional Regulation in the Ethylene Response.

ABSTRACT: Nuclear Pyruvate Dehydrogenase Complex regulates EIN2-directed Histone Acetylation and Transcriptional Regulation in the Ethylene Response.

PROVIDER: PRJNA875921 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR21389706_1.fastq.gz	Fastqsanger.gz
	SRR21389706_2.fastq.gz	Fastqsanger.gz
	SRR21389707_1.fastq.gz	Fastqsanger.gz
	SRR21389707_2.fastq.gz	Fastqsanger.gz
	SRR21389708_1.fastq.gz	Fastqsanger.gz

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Nuclear Pyruvate Dehydrogenase Complex regulates EIN2-directed Histone Acetylation and Transcriptional Regulation in the Ethylene Response.

Project description:Histone acetylation is important for the transcriptional regulation in the ethylene response and the nuclear metabolic production of acetyl coenzyme A (acetyl-CoA) plays key roles in histone acetylation. But how the nucleus produces acetyl-CoA for histone acetylation and transcription regulation in the ethylene response is completely unknown. Here we show that functional pyruvate dehydrogenase complex (PDC) translocates from the mitochondria to the nucleus in response to ethylene, generating nuclear acetyl CoA from pyruvate to regulate EIN2-directed histone acetylation and transcription in the target genes. It has been reported that the dephosphorylated E1 subunit of the PDC complex is required for the PDC activity, we examined the phosphorylation status change of E1 in the nucleus in response to ethylene. The MS data shows quantitative phosphorylation differences between cytosolic and nuclear fraction supporting the dephosphorylation of E1 upon ethylene treatment.

2024-06-25 | PXD040689 | Pride

Nuclear Pyruvate Dehydrogenase Complex regulates EIN2-directed Histone Acetylation and Transcriptional Regulation in the Ethylene Response.[ChIP-Seq]

Project description:Next-generation sequencing (NGS) has been used to study the histone acetylation in Arabidopsis etiolated seedlings under air and ethylene treatment. The goal of this study is to investigate how pyruvate dehydrogenase complex is involved in histone acetylation changes in response to ethylene.

2023-12-01 | GSE212536 | GEO

Nuclear Pyruvate Dehydrogenase Complex regulates EIN2-directed Histone Acetylation and Transcriptional Regulation in the Ethylene Response. [RNA-Seq]

Project description:Next-generation sequencing (NGS) has been used to study the differential gene expression in Arabidopsis etiolated seedlings under air and ethylene treatment. The goal of this study is to investigate how pyruvate dehydrogenase complex is involved in transcriptional regulation in response to ethylene.

2023-12-01 | GSE212530 | GEO

Nuclear Pyruvate Dehydrogenase Complex regulates EIN2-directed Histone Acetylation and Transcriptional Regulation in the Ethylene Response.[ChIP-Seq]

Project description:Nuclear Pyruvate Dehydrogenase Complex regulates EIN2-directed Histone Acetylation and Transcriptional Regulation in the Ethylene Response.[ChIP-Seq]

| PRJNA875917 | ENA

Nuclear Pyruvate Dehydrogenase Complex regulates EIN2-directed Histone Acetylation and Transcriptional Regulation in the Ethylene Response. [RNA-Seq]

Project description:Nuclear Pyruvate Dehydrogenase Complex regulates EIN2-directed Histone Acetylation and Transcriptional Regulation in the Ethylene Response. [RNA-Seq]

| PRJNA875920 | ENA

Interplay between ethylene, ETP1/ETP2 F-box proteins, and degradation of EIN2 triggers ethylene responses in Arabidopsis

Project description:A complex interplay between ethylene, ETP1/ETP2 F-box proteins, and degradation of EIN2 is essential for triggering ethylene responses in plants. The gaseous plant hormone ethylene can trigger myriad physiological and morphological responses in plants. While many ethylene signaling pathway components have been identified and characterized, little is known about the function of the integral membrane protein EIN2, a central regulator of all ethylene responses. Here, we demonstrate that Arabidopsis thaliana EIN2 is a protein with a short half-life that undergoes rapid proteasome-mediated protein turnover. Moreover, EIN2 protein accumulation is positively regulated by ethylene. We identified two F-box proteins, EIN2 TARGETING PROTEIN and 2 (ETP1 and ETP2), that interact with the EIN2 carboxyl-terminal domain (CEND), which is highly conserved and sufficient to activate most ethylene responses. Overexpression of ETP1 or ETP2 disrupts EIN2 protein accumulation, and these plants manifest a strong ethylene insensitive phenotype. Furthermore, knocking down the levels of both ETP1 and ETP2 mRNAs using an artificial microRNA (amiRNA) leads to accumulation of EIN2 protein, resulting in plants that display constitutive ethylene response phenotypes. Finally, ethylene down-regulates ETP1 and ETP2 proteins, impairing their ability to interact with EIN2. Thus, these studies reveal that a complex interplay between ethylene, the regulation of ETP1/ETP2 F-box proteins, and subsequent targeting and degradation of EIN2 is essential for triggering ethylene responses in plants. Keywords: ethylene treatment, genetic modification

2009-12-01 | GSE14247 | GEO

Nuclear Pyruvate Dehydrogenase Complex regulates EIN2-directed Histone Acetylation and Transcriptional Regulation in the Ethylene Response.

Project description:This SuperSeries is composed of the SubSeries listed below.

2023-12-01 | GSE212540 | GEO

Ethylene modulates the dynamics of translation via GCN2 and EIN2 in Arabidopsis under submergence

Project description:General translational repression is predicted as a key process to reduce energy consumption under hypoxia. We have previously showed that mRNA loading onto polysome is reduced in Arabidopsis under submergence. Here, we showed that plant stress activated GCN2 (general control nonderepressible 2) can phosphorylate eIF2a (Eukaryotic Initiation Factor 2a) in Arabidopsis under submergence, and this process is reversible after desubmergence. Compared to the wild-type, the reduction in polysome loading during submergence was less severe in the gcn2 mutant. Transgenic lines overexpressing GCN2 had more ATP and conferred better tolerance under submergence, suggesting that GCN2 might modulate the dynamics of translation to adjust the energy homeostasis under hypoxia. Interestingly, GCN2-eIF2a signaling was activated by ethylene under submergence. However, GCN2 activity was not affected in ein2-5 and eil1ein3 under submergence, suggesting that GCN2 activity was regulated by noncanonical ethylene signaling. In addition, the polysome loading was retained in both ein2-5 and etr1-1 under submergence, implying that ethylene modulated the dynamic translation under submergence via EIN2 and GCN2. Notably, our NGS analysis also demonstrated that EIN2 and GCN2 regulated the translation of 23 core hypoxia genes as well as 53% translational repressed genes under submergence. On the other hand, EIN2 and GCN2 also affected the expression of genes involved in hypoxic response, ethylene response, biotic stress and negative regulation of cytokinin signaling. Taken together, these demonstrated that entrapped ethylene triggers GCN2 and EIN2 to ensure the translation of stress required proteins under submergence and also provide a step stone for future investigation how eukaryotic cells modulate the translation to response for the changeable environments.

2022-06-08 | GSE149414 | GEO

RNAi profiling of Arabidopsis Col-0 plants (air control), 8 week old Col-0 plants treated for 24 hours with ethylene gas (10 ppm), and artificial microRNA knockdown mutants, amiR-ETP1/2 - interplay between ethylene, ETP1/ETP2 F-box proteins, and degradation of EIN2 triggers ethylene responses in Arabidopsis

2009-12-05 | E-GEOD-14247 | biostudies-arrayexpress

ENAP1 is involoved in the Histone H3K23 acetylation- and EIN3- mediated ethylene response

Project description:We report that ethylene reduce the ENAP1 binding. We perform Chip-sequencing of ENAP1 using chromatins isolated from 3-day old etiolated Col-0/ein2/ein3eil1 seedlings treated with ethylene or air gas. Results show that ethylene reduce ENAP1 binding in TSS region of EIN3 targeted genes that are regulated at the transcriptional level by ethylene.

2017-09-07 | GSE81200 | GEO

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