Fena Ochs
@fenaochs.bsky.social
The Fena Ochs Lab at the University of Copenhagen
3D chromatin function super-resolved
https://www.fenaochslab.org/
3D chromatin function super-resolved
https://www.fenaochslab.org/
Reposted by Fena Ochs
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...
Register now - lots of opportunities for selected talks www.eventsforce.net/biochemsoc/f...
www.eventsforce.net
January 5, 2026 at 4:52 PM
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...
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.
New Online! Organization of replicated chromosomes by DNA loops and sister chromatid cohesion
Organization of replicated chromosomes by DNA loops and sister chromatid cohesion
Nature Reviews Molecular Cell Biology, Published online: 02 January 2026; doi:10.1038/s41580-025-00933-1Cohesin complexes regulate genome architecture through DNA loop extrusion and sister chromatid cohesion. The Review discusses how these two cohesin activities mediate the organization of replicated chromosomes and their segregation in mitosis and meiosis, DNA break repair, and age-related aneuploidy in oocytes.
bit.ly
January 2, 2026 at 11:23 AM
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.
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...
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...
www.nature.com
January 2, 2026 at 8:12 AM
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...
Reposted by Fena Ochs
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...
www.biorxiv.org/content/10.6...
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...
www.biorxiv.org
December 11, 2025 at 6:09 AM
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...
www.biorxiv.org/content/10.6...
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...
Postdocs at Center for Gene Expression in Department of Cellular and Molecular Medicine
employment.ku.dk
December 1, 2025 at 11:37 AM
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...
Reposted by Fena Ochs
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
October 30, 2025 at 1:59 PM
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
Reposted by Fena Ochs
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...
www.nature.com/articles/s41...
www.nature.com/articles/s41...
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...
www.nature.com
September 9, 2025 at 12:22 PM
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...
www.nature.com/articles/s41...
www.nature.com/articles/s41...
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...
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...
www.biorxiv.org
September 10, 2025 at 7:01 PM
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...
Reposted by Fena Ochs
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...
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...
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...
www.biorxiv.org
September 10, 2025 at 4:50 PM
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...
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...
Reposted by Fena Ochs
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...
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...
www.biorxiv.org
September 10, 2025 at 3:18 PM
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...
Reposted by Fena Ochs
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.
(1/n) DNA-PAINT imaging inside the nucleus at single antibody resolution using TIRF? Ultrathin sectioning makes it happen!
Grateful to share my postdoctoral work introducing “tomographic & kinetically-enhanced DNA-PAINT” or in brief: tkPAINT. Out in @pnas.org!
doi.org/10.1073/pnas...
👇🧵
Grateful to share my postdoctoral work introducing “tomographic & kinetically-enhanced DNA-PAINT” or in brief: tkPAINT. Out in @pnas.org!
doi.org/10.1073/pnas...
👇🧵
August 13, 2025 at 6:16 PM
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.
Reposted by Fena Ochs
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...
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...
August 22, 2025 at 11:48 AM
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...
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...
Reposted by Fena Ochs
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...
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...
doi.org
July 16, 2025 at 4:55 PM
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...
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
Read more about the event here: lnkd.in/dcRsH3gg
July 12, 2025 at 8:35 AM
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
Read more about the event here: lnkd.in/dcRsH3gg
Reposted by Fena Ochs
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...
Please get in touch with your CV if you are interested; closing date: 27th June 2025.
More details here: candidate.hr-manager.net/ApplicationI...
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
candidate.hr-manager.net
May 29, 2025 at 11:26 AM
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...
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.
Stort tillykke til de nyligt udnævnte LF Fellows 2025!
Vi er glade for at kunne tildele vores LF #Fellowship til syv yderst talentfulde forskere.
Hver forsker modtager DKK 10 mio. til at støtte deres forskerprojekts udvikling over fem år. ow.ly/LKRh50VMYAP
Vi er glade for at kunne tildele vores LF #Fellowship til syv yderst talentfulde forskere.
Hver forsker modtager DKK 10 mio. til at støtte deres forskerprojekts udvikling over fem år. ow.ly/LKRh50VMYAP
May 6, 2025 at 6:07 PM
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.
Reposted by Fena Ochs
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".
🚨 Preprint alert 🚨
Excited to share our work on "Ab-trapping," an antibody artifact causing misleading peripheral ("rim") staining in imaging & genomics (IF, CUT&Tag, CUT&RUN). Antibodies fail to penetrate structures, accumulating at the periphery. A 🧵👇
doi.org/10.1101/2025...
Excited to share our work on "Ab-trapping," an antibody artifact causing misleading peripheral ("rim") staining in imaging & genomics (IF, CUT&Tag, CUT&RUN). Antibodies fail to penetrate structures, accumulating at the periphery. A 🧵👇
doi.org/10.1101/2025...
Ab-trapping - a peripheral staining artifact in antibody-based microscopy and genomics
Antibodies (Ab) are essential for detecting specific epitopes in microscopy and genomics, but can produce artifacts leading to erroneous interpretations. Here, we characterize a novel artifact, Ab-tra...
doi.org
April 16, 2025 at 5:15 PM
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".
Reposted by Fena Ochs
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:
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:
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...
www.science.org/doi/10.1126/...
A short clip describing the key results:
www.youtube.com/watch?v=pmvO...
Rules of Engagement
YouTube video by Johan Gibcus
www.youtube.com
April 11, 2025 at 4:06 PM
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:
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:
Reposted by Fena Ochs
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...
www.science.org/doi/10.1126/...
A short clip describing the key results:
www.youtube.com/watch?v=pmvO...
Rules of Engagement
YouTube video by Johan Gibcus
www.youtube.com
April 11, 2025 at 7:45 AM
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...
www.science.org/doi/10.1126/...
A short clip describing the key results:
www.youtube.com/watch?v=pmvO...
Reposted by Fena Ochs
🚨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!
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.
tinyurl.com
February 12, 2025 at 2:53 PM
🚨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!
Reposted by Fena Ochs
🚨#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!
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!
March 25, 2025 at 7:55 AM
🚨#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!
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!
Wonderful, thought-provoking review by Sir Adrian Bird on cohesin loop extrusion as disrupter of chromatin organisation rather than generator. Great read!
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Cohesin as an essential disruptor of chromosome organization
Cohesin is a multi-subunit molecular machine that is able to create lateral chromatin loops within a linear chromosome fiber. Despite intense study, a…
www.sciencedirect.com
March 25, 2025 at 7:43 AM
Wonderful, thought-provoking review by Sir Adrian Bird on cohesin loop extrusion as disrupter of chromatin organisation rather than generator. Great read!
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reposted by Fena Ochs
Please repost! Post-doc studying novel mechanisms of post-replicative gap-filling available in my lab here in beautiful Snowdonia, between July 2025 to end Nov 2026. Generous travel budget. Lab is full of friendly and supportive colleagues. Link below, or DM me/email c.staples@bangor.ac.uk for info
March 12, 2025 at 2:51 PM
Please repost! Post-doc studying novel mechanisms of post-replicative gap-filling available in my lab here in beautiful Snowdonia, between July 2025 to end Nov 2026. Generous travel budget. Lab is full of friendly and supportive colleagues. Link below, or DM me/email c.staples@bangor.ac.uk for info
Reposted by Fena Ochs
This is such a cool paper!
Here is the peer-reviewed version of our study showing how some TAD borders are essential for gene regulation and development.
Loss of a single CTCF motif is sufficient to cause embryonic lethality.
www.sciencedirect.com/science/arti...
Loss of a single CTCF motif is sufficient to cause embryonic lethality.
www.sciencedirect.com/science/arti...
Deletion of a single CTCF motif at the boundary of a chromatin domain with three FGF genes disrupts gene expression and embryonic development
Chromatin domains delimited by CTCF can restrict the range of enhancer action. However, disruption of some domain boundaries results in mild gene dysr…
www.sciencedirect.com
February 27, 2025 at 5:20 AM
This is such a cool paper!
Reposted by Fena Ochs
A brilliant, kind, funny colleague gone too soon. We will miss you Bela.
www.merton.ox.ac.uk/news/remembe...
www.merton.ox.ac.uk/news/remembe...
Remembering Professor Béla Novák 1956 - 2025
With great sadness, we announce the loss of Professor Béla Novák.
www.merton.ox.ac.uk
February 25, 2025 at 4:41 PM
A brilliant, kind, funny colleague gone too soon. We will miss you Bela.
www.merton.ox.ac.uk/news/remembe...
www.merton.ox.ac.uk/news/remembe...