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Method: Kinetic measurement of gene-specific RNA polymerase II transcription elongation rates
- Haiyue Liu and
- Lea H. Gregersen
Genome Res. November 2025 35: 2550-2562; Published in Advance October 22, 2025, doi:10.1101/gr.280852.125
....DiscussionHere, we present an improved methodology and computational framework to directly quantify RNAPII elongation rates across more than 3000 individual human genes. Key modifications to the original method include shortening the RNA metabolic labeling pulse, incorporating a no-DRB background normalization...
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Research: Intergenic accumulation of RNA polymerase II maintains the potential for swift transcriptional restart upon release from quiescence
- Manuela Baquero Pérez,
- Gertjan Laenen,
- Isabelle Loïodice,
- Mickaël Garnier,
- Ugo Szachnowski,
- Antonin Morillon,
- Myriam Ruault,
- and Angela Taddei
Genome Res. October 2025 35: 2226-2239; Published in Advance August 12, 2025, doi:10.1101/gr.279874.124
...down, 3% of coding genes remain active. Furthermore, RNA polymerase II (RNAPII) accumulates at one-third of gene promoters. The corresponding genes are highly enriched among those showing a high level of transcription and high frequency of expression in individual cells, shortly after cells are refed...
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Research: Atypical epigenetic and small RNA control of degenerated transposons and their fragments in clonally reproducing Spirodela polyrhiza
- Rodolphe Dombey,
- Daniel Buendía-Ávila,
- Verónica Barragán-Borrero,
- Laura Diezma-Navas,
- Arturo Ponce-Mañe,
- José Mario Vargas-Guerrero,
- Rana Elias,
- and Arturo Marí-Ordóñez
Genome Res. March 2025 35: 522-544; Published in Advance March 4, 2025, doi:10.1101/gr.279532.124
...modifications like H3K9me2, which can be subsequently maintained independently of siRNAs. However, the of the clonally propagating duckweed Spirodela polyrhiza (Lemnaceae) has low levels of DNA methylation, very low expression of RdDM components, and near absence of 24 nt siRNAs. Moreover, some genes encoding...
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Research: Histone deacetylases maintain expression of the pluripotent gene network via recruitment of RNA polymerase II to coding and noncoding loci
- Richard D.W. Kelly,
- Kristy R. Stengel,
- Aditya Chandru,
- Lyndsey C. Johnson,
- Scott W. Hiebert,
- and Shaun M. Cowley
Genome Res. January 2024 34: 34-46; Published in Advance January 30, 2024, doi:10.1101/gr.278050.123
...and elongating polymerase, suggesting an overall reduction in polymerase recruitment. Using enhancer RNA (eRNA) expression to measure enhancer activity, we find that LBH589-sensitive eRNAs are preferentially associated with superenhancers and PSN binding sites. These findings suggest that HDAC activity...
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Resource: Isoform- and pathway-specific regulation of post-transcriptional RNA processing in human cells
- Ishwarya Venkata Narayanan,
- Karan Bedi,
- Brian Magnuson,
- Ariel McShane,
- Mario Ashaka,
- Michelle Paulsen,
- Thomas E Wilson,
- and Mats Ljungman
Genome Res. March 26, 2026 gr.280892.125; Published in Advance March 26, 2026, doi:10.1101/gr.280892.125
...by transcription factors and epigenetic modifications, less is known about how RNA 463 turnover is regulated (He et al. 2023). In this study, we used Bru-seq and BruChase-seq 464 technologies to assess nascent RNA synthesis, splicing and degradation. BruChase-465 seq differs from other methods used to study RNA...
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Research: Plant polymerase IV sensitizes chromatin through histone modifications to preclude spread of silencing into protein-coding domains
- Vivek Hari Sundar G,
- Chenna Swetha,
- Debjani Basu,
- Kannan Pachamuthu,
- Steffi Raju,
- Tania Chakraborty,
- Rebecca A. Mosher,
- and P.V. Shivaprasad
Genome Res. May 2023 33: 715-728; Published in Advance June 5, 2023, doi:10.1101/gr.277353.122
...-specific polymerases, not just in establishing effective silencing via sRNAs and DNA methylation but also in influencing chromatin boundaries.The chromatin is decorated with modifications to DNA and histones constituting epigenetic modifications (Law and Jacobsen 2010; Feng and Michaels 2015). The proportion...
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Review: A systematic guide for identifying transcription factors that directly regulate the expression of a gene of interest
- Andrew D. Bates,
- Dawid Grzela,
- Maciej Studzian,
- Louise Brennan,
- Moli Williams,
- Conor Fawcett,
- Beth Hammond,
- Manreen Grewal,
- Marcin Ratajewski,
- Lukasz Pulaski,
- and Urszula L. McClurg
Genome Res. March 2026 36: 433-459; Published in Advance February 17, 2026, doi:10.1101/gr.281154.125
...introduce new elements, such as exogenous proteins, activating mutations, plasmids, artificial chromosomes, or knock-in modifications. Conversely, loss-of-function approaches remove specific factors using mutations, siRNA silencing, or gene-editing techniques. These modifications can be applied to either...
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Method: DNA-m6A calling and integrated long-read epigenetic and genetic analysis with fibertools
- Anupama Jha,
- Stephanie C. Bohaczuk,
- Yizi Mao,
- Jane Ranchalis,
- Benjamin J. Mallory,
- Alan T. Min,
- Morgan O. Hamm,
- Elliott Swanson,
- Danilo Dubocanin,
- Connor Finkbeiner,
- Tony Li,
- Dale Whittington,
- William Stafford Noble,
- Andrew B. Stergachis,
- and Mitchell R. Vollger
Genome Res. November 2024 34: 1976-1986; Published in Advance June 7, 2024, doi:10.1101/gr.279095.124
...exhibit substantial per-molecule somatic alterations in both their length and sequence content (Dubocanin et al. 2022) and are known to be transcribed into telomeric repeat-containing RNA (TERRA) via a CpG island promoter located within a TAR1 repeat positioned adjacent to the majority of telomere repeats...
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Research: The impact of SWI/SNF and NuRD inactivation on gene expression is tightly coupled with levels of RNA polymerase II occupancy at promoters
- Sachin Pundhir,
- Jinyu Su,
- Marta Tapia,
- Anne Meldgaard Hansen,
- James Seymour Haile,
- Klaus Hansen,
- and Bo Torben Porse
Genome Res. March 2023 33: 332-345; Published in Advance March 16, 2023, doi:10.1101/gr.277089.122
.... Here we show that SWI/SNF and NuRD are in a tug-of-war to regulate PRC2 occupancy at lowly expressed and bivalent genes in mouse embryonic stem cells (mESCs). In contrast, at promoters of average or highly expressed genes, SWI/SNF and NuRD antagonistically modulate RNA polymerase II (Pol II) release...
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Research: Tyrosine 1–phosphorylated RNA polymerase II transcribes PROMPTs to facilitate proximal promoter pausing and induce global transcriptional repression in response to DNA damage
- Kamal Ajit,
- Adele Alagia,
- Kaspar Burger,
- and Monika Gullerova
Genome Res. February 2024 34: 201-216; Published in Advance March 11, 2024, doi:10.1101/gr.278644.123
...differences in sequence or epigenetic modifications might be relevant to determine the preference for antisense transcription at a subset of genes upon IR.The increased expression of Y1P PROMPTs upstream of down-regulated genes was found to be positively correlated with RNA Pol II proximal promoter pausing...
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