Fena Ochs

Are you a DNMT3 enthusiast wondering how they achieve specificity at CpG islands during development? And why is DNMT3B specifically required for methylation on the inactive X?

We set out to dissect the mechanism, now published in Genes & Development
genesdev.cshlp.org/content/earl...
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Uniform dynamics of cohesin-mediated loop extrusion in living human cells - Nature Genetics Live-cell fluorescence microscopy and polymer simulations in human HCT116 cells show similar cohesin density, residence times and extrusion speed across multiple genomic regions.

Great collaboration with the lab of Edouard Bertrand, with important contributions from Benoît Lelandais, Marie-Cécile Robert, Michael Szalay, and Jean-Yves Tinevez. Thanks a lot to all.

www.nature.com/articles/s41...

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TODAY! 👇

Alessandro Costa @costalaboratory.bsky.social, Dana Branzei and myself are co-organising the 2026 Machines on Genes meeting in beautiful Crete as the 94th Harden Conference hosted by @biochemsoc.bsky.social

Register now - lots of opportunities for selected talks www.eventsforce.net/biochemsoc/f...

Happy to share our new review on 3D chromatin organisation by cohesin with you. It was a great pleasure to review recent advances and future prospects with @danielgerlich.bsky.social.

Thanks, Anton!

Thanks, Rob!

Postdocs at Center for Gene Expression in Department of Cellular and Molecular Medicine - Copenhagen, Hovedstaden (DK) job with University of Copenhagen | 12849488 We are looking for 2 or more highly motivated postdocs interested in ribosome biology, 3D chromatin organisation, or regulation of protein turnove...

We are looking for a Postdoc at the Center for Gene Expression in Copenhagen. Deadline for applications is the 11th of January. If you are interested in 3D chromatin, SMC complexes, and super-resolution microscopy, join us. www.nature.com/naturecareer...

SET1/MLL complexes control transcription independently of H3K4me3 Histone H3 lysine 4 trimethylation (H3K4me3) at gene promoters is thought to play a central role in gene transcription. H3K4 methylation is deposited by the SET1 (A/B) and MLL (1-4) multi-protein comp...

An early Christmas present for those interested in chromatin and transcription! Fantastic work from @au-ho-yu.bsky.social and @aleksszczurek.bsky.social . Thanks to Inge and Michiel for their help. Please repost!

www.biorxiv.org/content/10.6...

Postdocs at Center for Gene Expression in Department of Cellular and Molecular Medicine

We are looking for a Postdoc to join us at the Center for Gene Expression @cgen2025.bsky.social at the University of Copenhagen! Full advertisement here: employment.ku.dk/faculty/?sho...

Exciting Expansion at CGEN! We’re thrilled to welcome Fena Ochs and Niels Erik Møllegaard. 🔬 Fena brings cutting-edge expertise in 3D chromatin organization and its role in gene regulation, DNA repair, and cell division. 🧬Niels Erik’s expertise is in genome structure and DNA helix conformation

Congratulations, Cees! Well deserved 🎉

m6A and the NEXT complex direct Xist RNA turnover and X-inactivation dynamics - Nature Structural & Molecular Biology Wei et al. show that the primary function of m6A on the nuclear long noncoding RNA Xist, a master regulator of X inactivation, is to promote RNA degradation. Xist turnover is mediated by the nuclear e...

Double celebration on our floor @oxfordbiochemistry.bsky.social with @guifengwei.bsky.social from the Brockdorff lab and Dounia and Sherry from Fisher lab having their papers published today! And I hear there is more to come...

www.nature.com/articles/s41...

www.nature.com/articles/s41...

DDIAS is a single-stranded DNA-binding effector of the TOPBP1-CIP2A complex in mitosis DNA double-strand breaks and unresolved DNA replication intermediates are particularly dangerous during mitosis. Paradoxically, cells inactivate canonical DNA repair mechanisms during chromosome segre...

Delighted to share our lab's first preprint identifying DDIAS as a mitotic DNA repair protein. Great collaboration with the @andrewblackford.bsky.social, @tcr-miller.bsky.social and @profstewartlab.bsky.social labs, and many more. Read the paper here: www.biorxiv.org/content/10.1...

Mitotic single-stranded DNA suppression by DDIAS Incomplete DNA replication and chromosome breakage during mitosis pose major threats to chromosome segregation. The CIP2A-TOPBP1 complex acts to mitigate this peril, but its exact role is not yet unde...

New work from the lab! 🔬

We report that DDIAS is a new component of the mitotic CIP2A-TOPBP1 pathway of genome maintenance. 1/n

www.biorxiv.org/content/10.1...

DDIAS is a single-stranded DNA-binding effector of the TOPBP1-CIP2A complex in mitosis DNA double-strand breaks and unresolved DNA replication intermediates are particularly dangerous during mitosis. Paradoxically, cells inactivate canonical DNA repair mechanisms during chromosome segre...

Excited to share our lab’s latest preprint! We identify DDIAS as a novel single-stranded DNA-binding component of the TOPBP1–CIP2A complex, which acts in a mitotic DNA damage response pathway to protect chromosome integrity. Short summary below, and read it here: www.biorxiv.org/content/10.1...

What better way to launch our new account with the publication of @jmstein.bsky.social latest paper from the lab! 🧪 Check out the 🧵 below to learn more about tkPAINT and how we use it to image proteins, DNA, and RNA in the nucleus using DNA-PAINT.

It is not always safe to repair DNA Damage. Sometimes, cells "just bypass it".

During DNA replication, repair of lesions on DNA can be dangerous. Cells instead "tolerate" DNA damage and focus on finishing replication.

Read our review and find out why and how: doi.org/10.1016/j.ti...

Long-read RNA sequencing of transposable elements from single cells using CELLO-seq - Nature Protocols Single-cell long-read RNA sequencing enables the high-fidelity mapping of single-cell expression data from highly sequence-similar transposable elements to unique genomic loci by correcting errors fro...

Very happy to share our protocols paper for CELLO-seq. This will make single cell long read RNA-seq more accessible and provides analysis guidelines. We hope this helps the #transposon #TEsky community and folks working on #singleCell isoform and allelic #gene expression. doi.org/10.1038/s415...

Congratulations @rberrens.bsky.social !!

Thank you, Nadia!

I am happy to share that I have been nominated as Eppendorf Award 2025 finalist. It was a wonderful award ceremony, especially as this year's keynote speaker was Professor Sir Steve Jackson, who won the first Eppendorf Award in 1995.
Read more about the event here: lnkd.in/dcRsH3gg

Postdoctoral Research Associate in the Blackford Group A position as Postdoctoral Research Associate is available at the Department of Cellular and Molecular Medicine, in the group headed by Dr. Andrew Blackford. Th

We’re #hiring, please share! A fully funded #postdoc position is available in my lab to work on DNA damage response mechanisms.

Please get in touch with your CV if you are interested; closing date: 27th June 2025.

More details here: candidate.hr-manager.net/ApplicationI...

I am overjoyed to share that I have been selected as a Lundbeck Fellow 2025. Thank you to @lundbeckfonden.bsky.social for their trust in me - My lab and I cannot wait to get started on this important work.

Done!

All you nuclear biologists out there: Here is a cautionary tale not to be fooled by peripheral organelle staining. It might just be that your antibody got trapped because it is "too good".

Excited to share our latest work on how cells fold their genomes, and build mitotic chromosomes! Out in Science today!

Lots of interesting results and proposals for those interested in loop extrusion, and chromosomes!

With @golobor.bsky.social, Leonid Mirny, Bill Earnshaw labs.

See thread below:

Rules of Engagement YouTube video by Johan Gibcus

Earnshaw, Goloborodko, Dekker & Mirny labs are excited to present our latest work, "Rules of engagement for condensins and cohesins guide mitotic chromosome formation" - now accepted!!
www.science.org/doi/10.1126/...
A short clip describing the key results:
www.youtube.com/watch?v=pmvO...

6 Postdoctoral and PhD positions in Center for Epigenetic Cell Memory (EpiC) The Center for Epigenetic Cell Memory (EpiC) is a new Center of Excellence that will be established based on funding by the Danish National Research Foundation.

🚨𝐌𝐚𝐣𝐨𝐫 𝐉𝐨𝐛 𝐀𝐥𝐞𝐫𝐭!🚨The Groth @groth-anja.bsky.social, Mailand, Nilsson @nilssonlab.bsky.social & Krietenstein @nilskrietenstein.bsky.social labs are hiring 𝟔 𝐏𝐡𝐃&𝐩𝐨𝐬𝐭𝐝𝐨𝐜𝐬 to join the new Center for Epigenetic Cell Memory (EpiC) in Copenhagen, Denmark. Apply here: tinyurl.com/yvd93na2 & please share!

🚨#CBC is happening today!

Don’t forget—our next Chromosome Biology Club is today at 16:45 at the Biocenter! Three great speakers and exciting science await, followed by beer and pizza. See you there!