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The evening complex component ELF3 recruits H3K4me3 demethylases to repress PHYTOCHROME INTERACTING FACTOR4 and 5 in Arabidopsis.
Plant Cell
December 2024
Department of Plant and Microbial Biology, University of Minnesota at Twin Cities, Saint Paul, MN 55108, USA.
In Arabidopsis (Arabidopsis thaliana), light and circadian clock signaling converge on PHYTOCHROME-INTERACTING FACTORS (PIFs) 4 and 5 to produce a daily rhythm of hypocotyl elongation. PIF4 and PIF5 expression is repressed at dusk by the evening complex (EC), consisting of EARLY FLOWERING3 (ELF3), ELF4, and LUX ARRHYTHMO (LUX). Here, we report that ELF3 recruits the JUMONJI (JMJ) H3K4me3 demethylases JMJ17 and JMJ18 to the PIF4 and PIF5 loci in the evening to remove their H3K4me3 marks.
View Article and Find Full Text PDFMina53 catalyzes arginine demethylation of p53 to promote tumor growth.
Cell Rep
January 2025
Ministry of Education Key Laboratory of Biosystems Homeostasis & Protection, College of Life Sciences, Zhejiang University, Hangzhou, China; Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang Provincial Key Laboratory of Pancreatic Disease, School of Medicine, Zhejiang University, Hangzhou, China; Cancer Center, Zhejiang University, Hangzhou, China. Electronic address:
Arginine methylation is a common post-translational modification that plays critical roles in many biological processes. However, the existence of arginine demethylases that remove the modification has not been fully established. Here, we report that Myc-induced nuclear antigen 53 (Mina53), a member of the jumonji C (JmjC) protein family, is an arginine demethylase.
View Article and Find Full Text PDFAnalogue-Sensitive Inhibition of Histone Demethylases Uncovers Member-Specific Function in Ribosomal Protein Synthesis.
J Am Chem Soc
January 2025
Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States.
Lysine demethylases (KDMs) catalyze the oxidative removal of the methyl group from histones using earth-abundant iron and the metabolite 2-oxoglutarate (2OG). KDMs have emerged as master regulators of eukaryotic gene expression and are novel drug targets; small-molecule inhibitors of KDMs are in the clinical pipeline for the treatment of human cancer. Yet, mechanistic insights into the functional heterogeneity of human KDMs are limited, necessitating the development of chemical probes for precision targeting.
View Article and Find Full Text PDFN6-methyladenosine RNA modification regulates the transcription of SLC7A11 through KDM6B and GATA3 to modulate ferroptosis.
J Biomed Sci
January 2025
Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, State Key Laboratory of Anti-Infective Drug Discovery and Development, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, China.
Background: Recent studies indicate that N6-methyladenosine (mA) RNA modification may regulate ferroptosis in cancer cells, while its molecular mechanisms require further investigation.
Methods: Liquid Chromatography-Tandem Mass Spectrometry (HPLC/MS/MS) was used to detect changes in mA levels in cells. Transmission electron microscopy and flow cytometry were used to detect mitochondrial reactive oxygen species (ROS).
H3K4me3 Genome-Wide Distribution and Transcriptional Regulation of Transposable Elements by RNA Pol2 Deposition.
Int J Mol Sci
December 2024
Jiangsu Livestock Embryo Engineering Laboratory, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
Zygotic genome activation (ZGA) is critical for early embryo development and is meticulously regulated by epigenetic modifications. H3K4me3 is a transcription-permissive histone mark preferentially found at promoters, but its distribution across genome features remains incompletely understood. In this study, we investigated the genome-wide enrichment of H3K4me3 during early embryo development and embryonic stem cells (ESCs) in both sheep and mice.
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