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Dynamic profiling of histone Kcr and Kla during neural differentiation in vivo

ABSTRACT: To gain a deeper insight into dynamic changes of histone lysine crotonylation and lactylation during embryonic neurogenesis, ChIP-seq, ATAC-seq and RNA-seq were performed to analyze the genome-wide changes of histone Kcr and Kla in the developing telencephalon.

ORGANISM(S): Mus musculus

PROVIDER: GSE171088 | GEO | 2022/06/30

REPOSITORIES: GEO

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Dynamic profiling of histone Kcr and Kla during neural differentiation in P19 embryonal carcinoma cells

Project description:To gain a deeper insight into dynamic changes of histone lysine crotonylation and lactylation during embryonic neurogenesis, ChIP-seq, ATAC-seq and RNA-seq were performed to analyze the genome-wide changes of histone Kcr and Kla in the P19 embryonal carcinoma cells.

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Project description:To gain a deeper insight into how histone lysine crotonylation regulates embryonic neural stem/progenitor cells (NSPCs) proliferation and differentiation, ChIP-seq and RNA-seq were performed to analyze the genome-wide changes of histone Kcr and transcriptiome changes stimulated with crotonate and MS-275 in E13.5 NSPCs.

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Identification of 67 histone marks and histone lysine crotonylation as a new type of histone modification

Project description:We report the identification of 67 previously undescribed histone modifications, increasing the current number of known histone marks by about 70%. We further investigated one of the marks, lysine crotonylation (Kcr), confirming that it represents an evolutionarily-conserved histone posttranslational modification. The unique structure and genomic localization of histone Kcr suggest that it is mechanistically and functionally different from histone lysine acetylation (Kac). Specifically, in both human somatic and mouse male germ cell genomes, histone Kcr marks either active promoters or potential enhancers. In male germinal cells immediately following meiosis, Kcr is enriched on sex chromosomes and specifically marks testis-specific genes, including a significant proportion of X-linked genes that escape sex chromosome inactivation in haploid cells. These results therefore dramatically extend the repertoire of histone PTM sites and designate Kcr as a specific mark of active sex chromosome-linked genes in postmeiotic male germ cells. 2 histone marks (pan-lysine acetylation and pan-lysine crotonylation) were studied in 1 human cell type and 2 mouse cell types using ChIP-Seq. Input was sequenced for each cell type as a control. Pan-anti_Kac and pan-anti_Kcr antibodies were custom developed with PTM BioLab, Co., Ltd (Chicago, IL).

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GlobaGlobal involvement of lysine crotonylation in protein modification and transcription regulation in ricel involvement of lysine crotonylation in protein modification and transcription regulation in rice

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2018-07-23 | PXD008716 | Pride

Global involvement of lysine crotonylation in protein modification and transcription regulation in rice

Project description:Lysine crotonylation (Kcr) is a newly discovered post-translational modification (PTM) existing in mammals. A global crotonylome analysis was undertaken in rice (Oryza sativa L. japonica) using high accuracy nano-LC-MS/MS in combination with crotonylated peptide enrichment. A total of 1,265 lysine crotonylation sites were identified on 690 proteins in rice seedlings. Subcellular localization analysis revealed that 51% of the crotonylated proteins identified were localized in chloroplasts. The photosynthesis-associated proteins were also mostly enriched in total crotonylated proteins. In addition, a genomic localization analysis of histone Kcr by ChIP-seq was performed to assess the relevance between histone Kcr and the genome. Of the 10,923 identified peak regions, the majority (86.7%) of the enriched peaks were located in gene body, especially exons. Furthermore, the degree of histone Kcr modification was positively correlated with gene expression in genic regions. Compared with other published histone modification data, the Kcr was co-located with the active histone modifications. Interestingly, histone Kcr facilitated expression of genes with existing active histone modifications. In addition, 77% of histone Kcr modifications overlapped with DNase hypersensitive sites (DHSs) in intergenic regions of the rice genome, and might mark other cis-regulatory DNA elements which are different from IPA1, a transcription activator in rice seedlings. Overall, our results provide a comprehensive understanding of the biological functions of the crotonylome and new active histone modification in transcriptional regulation in plants.

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Dynamic profiling of histone Kcr and Kla during neural differentiation in vivo

Project description:Dynamic profiling of histone Kcr and Kla during neural differentiation in vivo

| PRJNA718305 | ENA

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