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Liyang Shi

@liyangshi.bsky.social
43 followers 137 following 1 posts

PhD candidate in Genomic Medicine Kyoto-McGill joint program #epigenetics #centromere #TE

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Reposted by Liyang Shi
jakobheinz.bsky.social @jakobheinz.bsky.social · 01/10/2026
I’m excited to share our new preprint introducing HipHap, a tool for assigning long reads to haplotype-resolved diploid reference assemblies! With Max Marin, Matthew Meyerson, and @lh3lh3.bsky.social Preprint: www.biorxiv.org/content/10.6... 🧵 1/6
biorxiv.org
HipHap: Haplotype Assignment and Confidence Scoring for Diploid Reference Genomes
Diploid genome assemblies are now routinely available, but most read aligners were designed for haploid references, which have long been the gold standard. When reads are aligned to a diploid assembly...
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Reposted by Liyang Shi
Institute of Molecular Biotechnology @imbavienna.bsky.social · 23/09/2026
Can “jumping genes” spread like viruses? New research from the Brennecke lab at IMBA shows that, in fruit flies, certain transposable elements can break out of their own cell and slip into developing eggs—securing their passage to the next generation. Published in Cell: imba.science/4jdMuYQ
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Arnaud Krebs @arnaudkr.bsky.social · 14/09/2026
your starter pack for Single Molecule Genomics! Why you should do it (or not) - How you should do it. Collective effort with @vram142.bsky.social @stirlingchurchman.bsky.social @naltemose.bsky.social A Stergachis M Stadler W Greenleaf @embl.org rdcu.be/PmzSEV529GRa
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Nicolas Robine 🇪🇺🇫🇷🇺🇸 @nicorobine.bsky.social · 26/08/2026
Long-read sequencing reveals pre-meiotic gene conversion in sperm www.nature.com/articles/s41...
nature.com
Long-read sequencing reveals pre-meiotic gene conversion in sperm - Nature
Single-molecule long-read sequencing of human sperm reveals variation in recombination across donors and that a substantial fraction of non-crossover gene conversions arises before meio...
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Reposted by Liyang Shi
Stefan Schoenfelder @stefanschoenfelder.bsky.social · 07/08/2026
Very happy to see this story finally out in @natbiotech.nature.com: www.nature.com/articles/s41... Fantastic collaboration with @lancasterlab.bsky.social on how to identify and ‘fix’ differentiation-compromised human pluripotent stem cells. @babrahaminst.bsky.social @mrclmb.ac.uk 🧵 below
nature.com
Reversible epiblast regionalization determines differentiation potential of human pluripotent stem cells - Nature Biotechnology
The differentiation variability of human pluripotent stem cell lines is diagnosed and corrected.
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Reposted by Liyang Shi
Cell - a Cell Press journal @cp-cell.bsky.social · 06/08/2026
New issue alert👉https://cell.com/cell/current On the cover: The Telomere-to-Telomere Consortium has finished the complete, diploid genome of a person. The cover is inspired by a karyotype of the chromosomes in metaphase, representing the two haplotypes as different colors.
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Reposted by Liyang Shi
Gael Cristofari @retrogenomics.bsky.social · 30/07/2026
That’s a beautiful story that shows again how powerful long reads are for studying transposable elements. Exciting times! For accessing the Perspective piece without a paywall: www.science.org/eprint/NIKHD...
science.org
Why the X chromosome is rich in L1 mobile elements
Preferential insertion into the late-replicating inactive X explains L1 accumulation in this chromosome
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Reposted by Liyang Shi
Floris Barthel @florisbarthel.bsky.social · 17/05/2026
The human genome's most variable and clinically important regions (centromeres, telomeres, and acrocentric short arms) have been hardest to study at scale. Thrilled to share KaryoScope, our new preprint that brings them within reach. 🧵 www.biorxiv.org/content/10.6...
KaryoScope karyotype of the HG002 diploid assembly. All 22 autosomes plus X and Y, each shown as paired haplotypes (h1, h2). Each chromosome has a full-length track colored by chromosome of origin, a centromere zoom panel showing satellite composition, and a subtelomere zoom panel. Legends map chromosomes, satellite families, and subtelomeric features to colors.
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Reposted by Liyang Shi
Needhi Bhalla 💅🏽 @needhibhalla.bsky.social · 12/05/2026
👀"These results establish that naturally occurring copy-number variation within repetitive pericentromeric DNA is not merely noise, but a functional source of variation in chromosome segregation and gene regulation."
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Reposted by Liyang Shi
Hiten Madhani @hitenmadhani.bsky.social · 30/04/2026
Loss is maintenance DNA methylation during cell proliferation/aging etc is not random. Intriguing new findings from the Rao lab show a strong correlation with dinucleotides flanking CpG sites. Seems likely to be important. www.biorxiv.org/content/10.6...
biorxiv.org
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bioRxiv Genomics @biorxiv-genomic.bsky.social · 23/03/2026
Transposable element-host genome evolutionary arms race revealed by multi-modal epigenomic profiling in a telomere-to-telomere human genome reference www.biorxiv.org/content/10.64898/20…
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Reposted by Liyang Shi
Molecular Biology and Evolution @molbioevol.bsky.social · 02/03/2026
For a new MBE Review, Presgraves et al. argue that many features of genome evolution, content, and organization seemingly inexplicable by adaptation or nearly neutral processes are instead best accounted for by meiotic drive. 🔗 academic.oup.com/mbe/article/... #evobio #molbio
MBE | The evolutionary genomics of meiotic drive

Meiotic drivers gain transmission advantages by distorting equal, Mendelian segregation. This review discusses the evolutionary genomics of meiotic drive. The figure highlights the interactions of meiotic drive elements with other classes of selfish genetic elements including: direct interactions between drivers and transposable elements (TEs) (A) or satellites (C) that can facilitate the spread of drivers; other drive systems that cause the mutual destruction of all gametes (B; e.g. the presence of multiple toxin-antidote systems); indirect interactions where the host machinery responsible for silencing TEs are recruited to silence drivers (D); dosage-sensitive interactions involving sex-linked drivers that result in gene amplifications (E); and tradeoffs between suppressing drive and TEs (F).
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Jose Tubio’s lab - Mobile Genomes @mobilegenomes.bsky.social · 26/02/2026
Today in @science.org: We are pleased to present our last work entitled: "Concurrent L1 retrotransposition events promote reciprocal translocations in human tumorigenesis" by Zumalave et al. www.science.org/doi/10.1126/...
science.org
Concurrent L1 retrotransposition events promote reciprocal translocations in human tumorigenesis
LINE-1 (L1) retrotransposition generates somatic genomic variation in human cancer, but short-read sequencing has limited our understanding of its structural consequences and dynamics. Using long-read...
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Reposted by Liyang Shi
Nature Biotechnology @natbiotech.nature.com · 23/02/2026
Transposable elements in the dark genome go.nature.com/4tQ1zTn
go.nature.com
Transposable elements in the dark genome - Nature Biotechnology
Transposable elements (TEs), such as retrotransposons and endogenous retroviruses, are increasingly recognized for their important roles in genome function and impact on disease development. Residing ...
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Reposted by Liyang Shi
Tien-Chi Huang @tienchihuang.bsky.social · 22/02/2026
Happy to share our latest paper. Our findings uncover a unique chromatin architecture and spatial chromosome arrangement in gonadal germ cells and document that alongside global DNA demethylation, the germline epigenetic reprogramming involves reorganisation of the 3D genome.
nature.com
Global reorganization of genome architecture at the transition to gametogenesis - Nature Structural & Molecular Biology
Huang, Rigau and colleagues observe major changes in how DNA is organized in early germ cells before they start developing into sperm or eggs. These results show that germline removes structural ‘memo...
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Reposted by Liyang Shi
Max Haase @maxhaase.bsky.social · 18/02/2026
Our paper is now out in Nature: “Ancient co-option of LTR retrotransposons as yeast centromeres” www.nature.com/articles/s41... A short thread on how retrotransposons helped give rise to yeast point centromeres. 1/14
nature.com
Ancient co-option of LTR retrotransposons as yeast centromeres - Nature
Evolutionarily related ‘proto-point’ centromeres providing resolution to the evolutionary origins of point centromeres are identified in yeast, and comparison shows they evolved in an ancestor with re...
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Reposted by Liyang Shi
Adam Phillippy @aphillippy.bsky.social · 02/02/2026
Lesson learned: Repetitive regions of the genome, like the short arms of the acrocentrics, are prone to recombination and duplication. This makes them a pain to sequence, but also very dynamic. Natural selection can take advantage of that instability to effect rapid change [19/21]
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Louisa Hill @louisa-hill.bsky.social · 02/02/2026
It’s out! 🥳 Excited to share our new paper (with Kai Walstein, @andrea-musacchio.bsky.social and all others) on the role of M18BP1 in CENP-A loading! “M18BP1 valency and a distributed interaction footprint determine epigenetic centromere specification in humans” link.springer.com/article/10.1...
link.springer.com
M18BP1 valency and a distributed interaction footprint determine epigenetic centromere specification in humans - The EMBO Journal
The histone H3 variant CENP-A is considered an epigenetic landmark of centromeres. Its deposition reflects cell-cycle-regulated assembly of M18BP1, HJURP, and PLK1 on a divalent MIS18α/β scaffold. The...
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Liyang Shi @liyangshi.bsky.social · 31/01/2026
Transposable elements determine 3D genome organization—beyond CTCF binding #TEsky link.springer.com/article/10.1...
link.springer.com
Dissecting the contribution of transposable elements to interphase chromosome structure - Genome Biology
Background Transposable elements (TEs) occupy nearly half of the human genome and play diverse biological roles. Despite their abundance, the extent to which TEs contribute to three-dimensional (3D) g...
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Reposted by Liyang Shi
Adam Phillippy @aphillippy.bsky.social · 29/01/2026
New tool from @alexsweeten.bsky.social to find and classify all your satellites: "AniAnn's: alignment-free annotation of tandem repeat arrays using fast average nucleotide identity estimates" 📄 www.biorxiv.org/content/10.6... 📦 github.com/marbl/anianns
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Schuh Lab @schuhlab.bsky.social · 12/01/2026
Our findings identify centromeric cohesion protection as a modifiable determinant of egg quality. This is, to our knowledge, the first molecular intervention shown to improve chromosome cohesion in human eggs. (9/10)
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Reposted by Liyang Shi
Anne Lopes @anne-lopes.bsky.social · 11/01/2026
Fresh news on de novo genes! Happy to present our latest work published in Nature communications: www.nature.com/articles/s41... Keywords not in specific order: intergenic ORFs, de novo genes, GC content, foldability, genetic code, ancestral sequence reconstruction and more :)
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Schuh Lab @schuhlab.bsky.social · 12/01/2026
Human eggs must segregate their chromosomes with exquisite precision — yet errors rise with maternal age, causing miscarriage & infertility. Our new article on @biorxivpreprint.bsky.social shows why chromosome cohesion fails in aging eggs & how to improve it. www.biorxiv.org/content/10.6... (1/10)
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bioRxiv Genomics @biorxiv-genomic.bsky.social · 30/12/2025
Somatic and germline mutational processes across the tree of life www.biorxiv.org/content/10.64898/20…
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bioRxiv Genomics @biorxiv-genomic.bsky.social · 26/12/2025
Haplotype-Resolved Genomics Reveals Conserved Chromatin Architecture and Epigenetic Constraints of Human Neocentromeres www.biorxiv.org/content/10.64898/20…
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bioRxiv Genomics @biorxiv-genomic.bsky.social · 24/12/2025
Origin and evolution of acrocentric chromosomes in human and great apes www.biorxiv.org/content/10.64898/20…
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Bungo Akiyoshi @bungoakiyoshi.bsky.social · 22/12/2025
The discovery of the first kinetochore proteins (CENP-A, CENP-B, CENP-C) was reported by Bill Earnshaw and Naomi Rothfield in 1985 in Chromosoma. Forty years later, Chromosoma/Chromosome Research has published a special issue (most articles are open access) link.springer.com/collections/...
link.springer.com
40 years of CENP-A
In 1985, Earnshaw and Rothfield published in Chromosoma a landmark discovery of the centromere-specific protein CENP-A. Subsequent research has shown that ...
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Reposted by Liyang Shi
Molly Przeworski @mollyprz.bsky.social · 22/12/2025
Happy to highlight an essay I wrote together with @marcdemanuel.bsky.social, @natanaels.bsky.social and Anastasia Stolyarova, trying to think through what sets the mutation rate of a cell type in an animal species: www.biorxiv.org/content/10.6... 1/n
biorxiv.org
What sets the mutation rate of a cell type in an animal species?
Germline mutation rates per generation are strikingly similar across animals, despite vast differences in life histories. Analogously, in at least one somatic cell type, mutation rates at the end of l...
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Reposted by Liyang Shi
bioRxiv Genomics @biorxiv-genomic.bsky.social · 18/12/2025
Human acrocentric chromosome short arm de novo mutation and recombination www.biorxiv.org/content/10.64898/20…
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bioRxiv Genomics @biorxiv-genomic.bsky.social · 17/12/2025
Complete genomes of a multi-generational pedigree to expand studies of genetic and epigenetic inheritance www.biorxiv.org/content/10.64898/20…
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Glennis Logsdon @glennislogsdon.bsky.social · 16/12/2025
Absolutely thrilled to share the latest work from my lab focused on the variation and evolution of human centromeres among global populations! We assembled 2,110 human centromeres, identifying 226 new major haplotypes and 1,870 α-satellite HOR variants. www.biorxiv.org/content/10.6...
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Patricia Gerdes @pgerdes.bsky.social · 14/12/2025
Very happy that this part of my postdoc work is now out as a preprint!! Our findings reveal a new mechanism by which retroviral pandemics may have shaped primate brain evolution 🧬🐒🧠 This was a true team effort! w/ @ofeliakarlsson.bsky.social @raquelgarza.bsky.social @jakobssonlab.bsky.social #TEsky
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Ragnar {Groot Koerkamp} @curiouscoding.nl · 10/12/2025
If you ever need to fuzzy search some DNA, sassy is your tool. Please spread the word; I think many people just outside my own circle could benefit from this :) cc @rickbitloo.bsky.social github.com/RagnarGrootK...
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Karen Lane @kezlane.bsky.social · 05/12/2025
Some Friday reading...new review in Open Biology where we discuss how SWI/SNF maintains the chromatin environment around centromeres, building on recent work from ourselves and others. Lots of fun putting this together with @alison-harrod.bsky.social and @thedownslab.bsky.social!
royalsocietypublishing.org
Boundary issues: SWI/SNF shapes chromatin patterns in and around centromeres
Abstract. The SWI/SNF family of chromatin remodelling complexes, comprising BAF, PBAF and ncBAF, is known for their critical roles in regulating chromatin
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Heng Li @lh3lh3.bsky.social · 03/12/2025
579 high-quality human genomes from @humanpangenome.bsky.social, Arab Pangenome and individual papers (CHM13, CN1, KSA001, I002C, YAO and KOREF1). Sequences available in the AGC format (3.7GB) and FM-index in the ropebwt3 format (20.3GB). For details, see github.com/lh3/human-asm
github.com
GitHub - lh3/human-asm: A collection of high-quality human genomes
A collection of high-quality human genomes. Contribute to lh3/human-asm development by creating an account on GitHub.
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Elphege Nora Lab at UCSF @elphegenoralab.bsky.social · 27/11/2025
Here is a copy of last year's Twitter thread explaining our preprint - jump to (21) for the new stuff 👀 Synergy between cis-regulatory elements can render cohesin dispensable for distal enhancer function now revised and journal accepted at www.science.org/doi/10.1126/... 🧵👇
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Jana Helsen @helsenjana.bsky.social · 26/11/2025
How do new centromeres evolve while staying compatible with the division machinery? Discover it in our new Nature paper! We show centromeres transition gradually via a mix of drift, selection, and sex, reaching new states that still work with the kinetochore. 👉 doi.org/10.1038/s41586-025-09779-1
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Lars Jansen Lab @jansenlab.bsky.social · 25/11/2025
A new and fascinating story from @bencarty.bsky.social and the group, with crucial help from the teams of @naltemose.bsky.social, Simona Giunta, and @dfachinetti.bsky.social. Many thanks to all for a fantastic collaboration. www.nature.com/articles/s41...
differential contribution of H3K9 methyltransferases to boundaries at satellites
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dfachinetti.bsky.social @dfachinetti.bsky.social · 21/11/2025
Happy to share the “International Symposium on Chromosome Dynamics: from Structure to Cellular Function” that will be held in Japan 31st of May 2026 www.fbs.osaka-u.ac.jp/labs/fukagaw.... Registrations will open on December 1st! Plenty of opportunities to present your work! Hope to seeing you
fbs.osaka-u.ac.jp
International Symposium on Chromosome Dynamics from Structure to Cellular Function
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James Davies @jojdavies.bsky.social · 05/11/2025
Our latest paper has just been published in Cell! doi.org/10.1016/j.ce... We developed a new method called MCC ultra, which allows 3D chromatin structure to be visualised with a 1 base pair pixel size.
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Stephen Tang @stephentang23.bsky.social · 17/10/2025
Genome maintenance by telomerase is a fundamental process in nearly all eukaryotes. But where does it come from? Today, we report the discovery of telomerase homologs in a family of antiviral reverse transcriptases, revealing an unexpected evolutionary origin in bacteria. doi.org/10.1101/2025...
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bioRxivpreprint @biorxivpreprint.bsky.social · 14/10/2025
A telomere-to-telomere map of somatic mutation burden and functional impact in cancer www.biorxiv.org/content/10.1101/202…
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Adam Phillippy @aphillippy.bsky.social · 22/09/2025
Delighted to finally announce a preprint describing the Q100 project! “A complete diploid human genome benchmark for personalized genomics” For which we finished HG002 to near-perfect accuracy: www.biorxiv.org/content/10.1... 🧵[1/14]
biorxiv.org
A complete diploid human genome benchmark for personalized genomics
Human genome resequencing typically involves mapping reads to a reference genome to call variants; however, this approach suffers from both technical and reference biases, leaving many duplicated and ...
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Nicolas Robine 🇪🇺🇫🇷🇺🇸 @nicorobine.bsky.social · 18/09/2025
"Transposable elements are vectors of recurrent transgenerational epigenetic inheritance" Congrats Vincent Colot and team! www.science.org/doi/10.1126/...
science.org
Transposable elements are vectors of recurrent transgenerational epigenetic inheritance
DNA methylation loss at transposable elements (TEs) can affect neighboring genes and be epigenetically inherited in plants, yet the determinants and significance of this additional system of inheritan...
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Iain Cheeseman @iaincheeseman.bsky.social · 09/09/2025
New preprint! Graduate student Océane Marescal leverages quiescence - proliferative hibernation - to reveal unexpected dynamics for “constitutively”-localized centromere proteins. To understand the logic of cell division, you need to consider non-dividing cells. www.biorxiv.org/content/10.1...
biorxiv.org
The dynamics of centromere assembly and disassembly during quiescence
Quiescence is a state in which cells undergo a prolonged proliferative arrest while maintaining their capacity to reenter the cell cycle. Here, we analyze entry and exit from quiescence, focusing on h...
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Reposted by Liyang Shi
dfachinetti.bsky.social @dfachinetti.bsky.social · 04/09/2025
#1 Centromeres are epigenetic loci defined by CENP-A, positioned in unmethylated DNA flanked by highly methylated regions. Our work, published in @natgenet.nature.com in collaboration with @naltemose.bsky.social investigates the role of DNAme at human centromeres www.nature.com/articles/s41...
nature.com
DNA methylation influences human centromere positioning and function - Nature Genetics
Genome-wide and targeted perturbation of DNA methylation at centromeres affects CENP-A positioning and centromere structure, resulting in aneuploidy and reduced cell viability.
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Maxim Greenberg @maxvcg.bsky.social · 09/08/2025
I believe that over the past ~ two decades, since the breakthrough papers on UHRF1, this is the first reported DNA methylation phenotype of its close paralog, UHRF2 (and not for lack of trying). Congrats to Ambre Bender and Michael Weber on this fantastic study! www.nature.com/articles/s41...
nature.com
UHRF2 mediates resistance to DNA methylation reprogramming in primordial germ cells - Nature Communications
DNA methylation in mouse primordial germ cells (PGCs) is restricted to transposable elements, but how this unique DNA methylome is established is poorly understood. Here, the authors identify UHRF2 as...
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Nicolas Manel Lab @manellab.bsky.social · 02/06/2025
Thrilled to share our latest @cp-cell.bsky.social. We present VICAR (VIral-induced Centromeric DNA Amplification and Recognition), a new defense system to detect viruses in the nucleus based on nuclear cGAS. www.cell.com/cell/abstrac...
cell.com
Centromeric DNA amplification triggered by viral proteins activates nuclear cGAS
Herpesvirus proteins disrupt centromeres, triggering centromeric DNA amplification and local nuclear activation of the nucleic acid sensor cGAS. This reveals an immune surveillance mechanism in the nu...
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Simon Fisher @profsimonfisher.bsky.social · 23/07/2025
Telomere-to-telomere DNA sequencing is set to transform the field of human genetics in coming years. For a flavour of what's coming, see this exciting work on nearly complete genomes of 65 individuals from diverse populations, out today in @nature.com by @glennislogsdon.bsky.social & colleagues. 👇🧬🧪
nature.com
Complex genetic variation in nearly complete human genomes - Nature
Using sequencing and haplotype-resolved assembly of 65 diverse human genomes, complex regions including the major histocompatibility complex and centromeres are analysed.
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