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Siegel Lab

@siegel-lab.bsky.social
336 followers 275 following 23 posts

We use T. brucei to study the role of chromatin and genome architecture in antigenic variation. www.vetmed.lmu.de/molpara/en

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Siegel Lab @siegel-lab.bsky.social · 05/03/2026
Congratulations!
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Siegel Lab @siegel-lab.bsky.social · 11/02/2026
Congratulations! It's great to have you working with us. Many thanks also to the @ec.europa.eu for the funding and to the anonymous reviewers for supporting Belén's ambitious project.
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Ellenberg Lab @ellenberglab.bsky.social · 21/07/2025
Our new non-denaturing nanoscale 3D DNA tracing technology provides single-cell (and sister-chromatid specific!) readout of chromatin structure with 10kb genomic resolution - Check it out! www.nature.com/articles/s41... Congratulations to Kai and Oyvind!!
nature.com
Nanoscale 3D DNA tracing in non-denatured cells resolves the Cohesin-dependent loop architecture of the genome in situ - Nature Communications
A nanoscale 3D DNA tracing workflow visualizes Cohesin-dependent loops in single, structurally well-preserved cells. Computer simulations based on the tracing data give further insight into how Cohesi...
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Siegel Lab @siegel-lab.bsky.social · 18/07/2025
We’re very excited about the potential of IACS for advancing infectious disease research and believe this review from the Goda lab and its collaborators in @natrevbioeng.nature.com highlights its many powerful applications. Check out the full paper here: www.nature.com/articles/s44...
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Anton Goloborodko @golobor.bsky.social · 15/07/2025
We found a new asymmetry in the large-scale chromosome structure: sister chromatids are systematically shifted by hundreds of kb in the 5′→3′ direction of their inherited strands! The work was led by Flavia Corsi, in close collaboration with the Daniel Gerlich lab. www.biorxiv.org/content/10.1... 1/
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Siegel Lab @siegel-lab.bsky.social · 23/06/2025
We’re excited to share our review: "Next-generation genetic screens in kinetoplastids", now published in NAR! It covers a range of perturbation methods—from RNAi to prime editing—as well as emerging assay technologies like scRNA-seq and image-activated cell sorting. academic.oup.com/nar/article/...
academic.oup.com
Next generation genetic screens in kinetoplastids
Abstract. The genomes of all organisms encode diverse functional elements, including thousands of genes and essential noncoding regions for gene regulation
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European Research Council (ERC) @erc.europa.eu · 19/05/2025
Are you based in the U.S. 🇺🇸 or Canada 🇨🇦 and thinking of doing research in Europe? ERC grants offer up to €4.5 million to support groundbreaking, investigator-driven frontier research in all fields. Watch the dedicated info session for researchers in your region👉 youtu.be/92QYink1Lik #ChooseEurope
youtu.be
ERC Grants: EU funding for your bottom-up research proposal (2025)
YouTube video by EURAXESS North America
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Nature Reviews Genetics @natrevgenet.nature.com · 21/05/2025
New online! RNA splicing — a central layer of gene regulation
nature.com
RNA splicing — a central layer of gene regulation
Nature Reviews Genetics, Published online: 21 May 2025; doi:10.1038/s41576-025-00846-xTechnological and computational advances in recent years, from cryo-electron microscopy to sequencing technologies and machine learning, have substantially deepened our understanding of RNA splicing. Nature Reviews Genetics and Nature Reviews Molecular Cell Biology present an online collection that showcases the novel biological insights facilitated by these advances.
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Nature @nature.com · 07/05/2025
Nature research paper: Chromatin loops are an ancestral hallmark of the animal regulatory genome go.nature.com/4kcNObU
go.nature.com
Chromatin loops are an ancestral hallmark of the animal regulatory genome - Nature
The physical organization of the genome in non-bilaterian animals and their closest unicellular relatives is characterized; comparative analysis shows chromatin looping is a conserved feature of genome architecture and spatial genome regulation emerged early in animal evolution.
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Wonder of Science @wonderofscience.bsky.social · 07/05/2025
These boxes are not moving. A mind-bending optical illusion by Japanese artist Jagarikin.
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Robin Allshire 🇮🇪 🇪🇺✊🏿 ⬆️ Zak’s favourite nucleosome: K9me @allshire-lab.bsky.social · 24/04/2025
Our latest collaborative work with Keith Matthews’ lab using synthetic DNA binding proteins to explore the chromatin protein contexts of repetitive sequences in Trypanosoma brucei in now on bioRxiv - thanks to all involved! 2025.04.22.649942; doi: doi.org/10.1101/2025...
doi.org
Defining the chromatin-associated protein landscapes on Trypanosoma brucei repetitive elements using synthetic TALE proteins
Kinetoplastids, such as Trypansoma brucei, are eukaryotes that likely separated from the main lineage at an exceptionally early point in evolution. Consequently, many aspects of kinetoplastid biology ...
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Siegel Lab @siegel-lab.bsky.social · 05/05/2025
Very much looking forward to it.
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Robin Allshire 🇮🇪 🇪🇺✊🏿 ⬆️ Zak’s favourite nucleosome: K9me @allshire-lab.bsky.social · 30/04/2025
Register for the excellent Epigenetics Gordon Research Conference Barcelona 10-15 Aug25. Theme: Epigenetic Variation: Mechanisms & Impact Across Systems. **FUNDING AVAILABLE to support attendance** ~15 talks to be chosen from submitted abstracts, so upload yours ASAP: www.grc.org/epigenetics-...
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Mohamed-Ali HAKIMI @hakimi.bsky.social · 11/04/2025
In the silence of chromatin, Toxoplasma whispers change. TgSNF2h sculpts the genome - MORC in the backseat. Some genes wake. Others sleep. A dance of nucleosomes shaping space for life parasite stages to unfold. Now in Nature Microbiology: rdcu.be/ehkWp
rdcu.be
An ISWI-related chromatin remodeller regulates stage-specific gene expression in Toxoplasma gondii
Nature Microbiology - Toxoplasma gondii evolved two ISWI remodellers, TgSNF2h and TgSNF2L. TgSNF2h forms a complex that insulates active genes, regulates MORC-driven sexual commitment and ensures...
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ME Torres-Padilla @metorrespadilla.bsky.social · 23/04/2025
Here is-🥳🥳😇 tremendous effort by @palmrinmoy.bsky.social brilliantly supported by @tamas-schauer.bsky.social &super help by federico,iliya,tsune,adam,@mamartirenom.bsky.social Very happy to see this come to fruition- Look forward to feedback from colleagues ! More 👉 www.cell.com/cell/fulltex...
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Siegel Lab @siegel-lab.bsky.social · 02/04/2025
Great work.
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Siegel Lab @siegel-lab.bsky.social · 12/03/2025
If you are interested in antigenic variation, you may have wondered how parasites ‘select’ which antigen to express next. Our manuscript, just published in Nature, provides some answers! www.nature.com/articles/s41... @lmumuenchen.bsky.social @erc.europa.eu a.eu @nature.com
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Doctors Without Borders / Médecins Sans Frontières (MSF) @msf.ca · 18/02/2025
#AidJobs: We are hiring, here is your chance to work with us. International Secretary General: bit.ly/42VhaWN Deputy Logistics Coordinator: bit.ly/4gIVDUf Tembo Support Officer: bit.ly/4gJ9WIK 5 Nutritionists- bit.ly/3CVtzPW Finance and Human Resources Manager: bit.ly/3QjZLzo
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Siegel Lab @siegel-lab.bsky.social · 14/02/2025
Hope we can join this meeting again this year.
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LabEx ParaFrap @parafrap.bsky.social · 21/11/2024
Save The Date : The Next EMBO Workshop « Host-parasite relationship: from mechanisms to control strategies », organized by @ParaFrap, will be held October 5-8, 2025 @EMBOevents #Science #Parasite #France
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PLOS Biology @plosbiology.org · 04/02/2025
How is transport directionality achieved through the #trypanosome nuclear pore complex? The current model is symmetrical, but this study reveals that the trypanosome #NuclearPore has an asymmetrical architecture, with conserved hubs that direct mRNA transport 🧪 @plosbiology.org plos.io/3Q36QV2
Expansion microscopy identifies novel asymmetric pore proteins. The images show proExM of cell lines co-expressing epitope-tagged versions of NUP76 (top; magenta), NUP149 (middle; magenta), or NUP140 (bottom; magenta) in combination with NUP110 (green). Images were deconvolved (20 iterations for NUP149 and NUP76; 60 iterations for NUP140) and single planes of the nuclei are shown.
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Rob Schneider @robertife.bsky.social · 23/01/2025
Please RS/RT. #GordonConference "Histone and DNA Modifications" Program is now online 🍾 #epigenetics #chromatin #histones 20.-25. July. Il Ciocco 🇮🇹 Register now: ➡️ shorturl.at/AtAjz Exciting speaker lineup, many slots for talks selected from abstracts
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Siegel Lab @siegel-lab.bsky.social · 16/01/2025
I’m very much looking forward to attending the symposium and to celebrate the career of Mark Carrington.
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Nature Portfolio @natureportfolio.nature.com · 14/01/2025
We have a feeling you'll be interested in this one. Nature is keen to find out how scientists are using Bluesky and whether it has become their go-to social-media platform. Take the survey! 🧪
go.nature.com
Has Bluesky replaced X for scientists? Take Nature’s poll
The research community has flocked to the social-media platform Bluesky. Tell us about your experience.
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Siegel Lab @siegel-lab.bsky.social · 14/01/2025
That is why we left.
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British Society for Parasitology @bspparasitology.bsky.social · 14/01/2025
🚨 Final abstract submission by tomorrow for #BSP2025 in Würzburg! 🚨 - Abstract submission by 𝟏𝟓𝐭𝐡 𝐉𝐚𝐧𝐮𝐚𝐫𝐲 𝟐𝟎𝟐𝟓 at tinyurl.com/5c2jn5zs - You can register (early bird registration until the 10th February) at tinyurl.com/3x32vycr
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Luisa Figueiredo @luisamfigueiredo.bsky.social · 13/01/2025
Have you finished your #PhD and are interested in exploring how #parasites cross the vasculature to colonize tissues? Do you fancy catching some #waves in the Atlantic? Or eating grilled fish by the beach? Join us in #Lisbon at GIMM, where science meets quality of life. @parasitesrule.bsky.social
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Matt Higgins @parasitematt.bsky.social · 13/01/2025
It is a great honour to invite you to a symposium to celebrate the career of Mark Carrington. An exciting set of talks, particularly if you are fascinated by trypanosomes.
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Siegel Lab @siegel-lab.bsky.social · 27/12/2024
Our paper is out! We used Micro-C to study the 3D genome organization at high resolution in trypanosomes and revealed an extensive network of inter-chromosomal transcription hubs. read more at doi.org/10.1038/s414... 🧬 Great work from @claudiarabu.bsky.social @naturecomms.bsky.social
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Siegel Lab @siegel-lab.bsky.social · 19/12/2024
Great work
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Edinburgh Infectious Diseases @uoe-eid.bsky.social · 19/12/2024
Genes linked to deadly parasites’ spread beyond Africa identified. Parasites that cause the deadly illness known as sleeping sickness can spread beyond their native Africa as a result of mutations to key genes. @keithrmatthews.bsky.social @goldrieve.bsky.social Full article: shorturl.at/9jlGS
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Francesca Torelli @fratorelli.bsky.social · 16/12/2024
Final version of paper n1 is out 🎉 so many pooled CRISPR screens are done worldwide, on the host and on pathogens, and we wondered whether interactions between KOs mask phenotypes: they do! We found out that for Toxo a lot of efforts are spent on fine tuning the environment in a paracrine way
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Siegel Lab @siegel-lab.bsky.social · 12/12/2024
Congratulations to Maria-Elena Torres-Padilla for being awarded the Leibniz Research Prize by the German Research Foundation. www.helmholtz-munich.de/en/newsroom/... @dfgpublic.bsky.social @metorrespadilla.bsky.social @www.helmholtz.de
helmholtz-munich.de
Helmholtz Munich
Helmholtz Munich, is a member of the Helmholtz Association of German Research Centres
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bishara marzook @ghostpathogen.bsky.social · 06/12/2024
Have you ever wondered how knocking out every single gene in the human genome, one by one, might affect your intracellular pathogen of interest? We did, & boy was it a wild ride! Happy to share our preprint discovering the essential host genome for Cryptosporidium - www.biorxiv.org/content/10.1...
Schematic showing the experimental outline for a full genome arrayed CRISPR screen. 384-well plates containing cells with an arrayed crRNA library are infected with Cryptosporidium parasites, which undergo asexual rounds of replication intracellularly, followed by sexual development to male and female forms. Plates are then fixed and immunolabeled to detect all parasites, female parasites, host actin recruited to parasite vacuoles, and host nuclei. Three z-stacks were imaged by high content microscopy to detect apically located parasites as well as host cell actin and nuclei.
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Olivier Duss @olivierduss.bsky.social · 04/12/2024
First paper of our lab today @natureportfolio.bsky.social by Nussi! We provide a real-time movie on how #transcription and #translation cooperate using #single-molecule FM: we find long-range #ribosome/ RNAP communication mediated by #RNA looping! @embl.org #RNAbiology #RNASky t.co/a24Xxcxdo0
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Rob Schneider @robertife.bsky.social · 08/12/2024
Please RS/RT. #GordonConference on "Histone and DNA Modifications" #epigenetics #chromatin 20-25. July 2025. Il Ciocco, Italy. Great speaker lineup. ➡️Register now www.grc.org/histone-and-...
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sandraduharcourt.bsky.social @sandraduharcourt.bsky.social · 02/12/2024
The 2nd edition of the Paris-Munich Epigenetics meeting will be held April 9-11, 2025 in Paris. Attendance is free of charge. Please visit the website www.sfb1064.med.uni-muenchen.de/paris_munich... to find out more about the program and to register. #epigenetics
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Mohamed-Ali HAKIMI @hakimi.bsky.social · 11/11/2024
A great line-up of parasitologists ready to Rumble in the Bluesky Jungle!
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Mohamed-Ali HAKIMI @hakimi.bsky.social · 11/11/2024
www.nature.com/articles/d41...
nature.com
AI protein-prediction tool AlphaFold3 is now open source
The code underlying the Nobel-prize-winning tool for modelling protein structures can now be downloaded by academics.
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