@kasitc.bsky.social
Postdoctoral Fellow, Genome Biology Unit, EMBL Heidelberg
Pinned
kasitc.bsky.social
@kasitc.bsky.social
· Aug 18
Activity of most genes is controlled by multiple enhancers, but is there activation coordinated? We leveraged Nanopore to identify a specific set of elements that are simultaneously accessible on the same DNA molecules and are coordinated in their activation. www.biorxiv.org/content/10.1...
Reposted
Happy to share our latest publication, in which we show that the arrangement of nucleosomes around CTCF sites contributes to higher-order organisation of chromatin into TADs: www.embopress.org/doi/full/10....
October 27, 2025 at 11:49 AM
Happy to share our latest publication, in which we show that the arrangement of nucleosomes around CTCF sites contributes to higher-order organisation of chromatin into TADs: www.embopress.org/doi/full/10....
Reposted
Out now! 🎉 Check the thread & preprint to see why we think E–P specificity is real in mammals — and, well, a few other interesting things popped up too 👀
Huge thanks to @danielibrahim.bsky.social, @arnaudkr.bsky.social & @stemundi.bsky.social and fantastic people in their labs — what a journey! 🧪🔬
Huge thanks to @danielibrahim.bsky.social, @arnaudkr.bsky.social & @stemundi.bsky.social and fantastic people in their labs — what a journey! 🧪🔬
What is a promoter? And how does it work?
We very happy to share our latest work trying to understand enhancer-promoter compatibility.
I am very excited about the results of @blanka-majchrzycka.bsky.social, which changed the way I think about promoters
www.biorxiv.org/content/10.1...
We very happy to share our latest work trying to understand enhancer-promoter compatibility.
I am very excited about the results of @blanka-majchrzycka.bsky.social, which changed the way I think about promoters
www.biorxiv.org/content/10.1...
Enhancer-promoter compatibility is mediated by the promoter-proximal region
Gene promoters induce transcription in response to distal enhancers. How enhancers specifically activate their target promoter while bypassing other promoters remains unclear. Here, we find that the p...
www.biorxiv.org
October 17, 2025 at 5:50 AM
Out now! 🎉 Check the thread & preprint to see why we think E–P specificity is real in mammals — and, well, a few other interesting things popped up too 👀
Huge thanks to @danielibrahim.bsky.social, @arnaudkr.bsky.social & @stemundi.bsky.social and fantastic people in their labs — what a journey! 🧪🔬
Huge thanks to @danielibrahim.bsky.social, @arnaudkr.bsky.social & @stemundi.bsky.social and fantastic people in their labs — what a journey! 🧪🔬
Reposted
Really excited to share our latest work led by @mattiaubertini.bsky.social and @nesslfy.bsky.social: we report that cohesin loop extrusion creates rare but long-lived encounters between genomic sequences which underlie efficient enhancer-promoter communication.
www.biorxiv.org/content/10.1...
A🧵👇
www.biorxiv.org/content/10.1...
A🧵👇
September 24, 2025 at 9:45 PM
Really excited to share our latest work led by @mattiaubertini.bsky.social and @nesslfy.bsky.social: we report that cohesin loop extrusion creates rare but long-lived encounters between genomic sequences which underlie efficient enhancer-promoter communication.
www.biorxiv.org/content/10.1...
A🧵👇
www.biorxiv.org/content/10.1...
A🧵👇
Reposted
Have you ever wondered how the exact location of a gene affects it's activity?
The main story of my PhD deals with exactly that question, and is now published in Science! ✨
www.science.org/doi/10.1126/...
My amazing co-author and friend @mathiaseder.bsky.social summarized the highlights for you
The main story of my PhD deals with exactly that question, and is now published in Science! ✨
www.science.org/doi/10.1126/...
My amazing co-author and friend @mathiaseder.bsky.social summarized the highlights for you
September 19, 2025 at 2:22 PM
Have you ever wondered how the exact location of a gene affects it's activity?
The main story of my PhD deals with exactly that question, and is now published in Science! ✨
www.science.org/doi/10.1126/...
My amazing co-author and friend @mathiaseder.bsky.social summarized the highlights for you
The main story of my PhD deals with exactly that question, and is now published in Science! ✨
www.science.org/doi/10.1126/...
My amazing co-author and friend @mathiaseder.bsky.social summarized the highlights for you
Reposted
1/ First preprint from @jdemeul.bsky.social lab 🥳! We present our new multi-modal single-cell long-read method SPLONGGET (Single-cell Profiling of LONG-read Genome, Epigenome, and Transcriptome)! www.biorxiv.org/content/10.1...
September 10, 2025 at 3:48 PM
1/ First preprint from @jdemeul.bsky.social lab 🥳! We present our new multi-modal single-cell long-read method SPLONGGET (Single-cell Profiling of LONG-read Genome, Epigenome, and Transcriptome)! www.biorxiv.org/content/10.1...
Reposted
We're super excited to announce the entire lineup for the Fall season of Fragile Nucleosome Seminars, starting on Sept 10th at 1200 EDT / 1600 UTC with @gracebower.bsky.social and @creminslab.bsky.social!
register here for the entire series: us06web.zoom.us/webinar/regi...
register here for the entire series: us06web.zoom.us/webinar/regi...
September 1, 2025 at 2:59 PM
We're super excited to announce the entire lineup for the Fall season of Fragile Nucleosome Seminars, starting on Sept 10th at 1200 EDT / 1600 UTC with @gracebower.bsky.social and @creminslab.bsky.social!
register here for the entire series: us06web.zoom.us/webinar/regi...
register here for the entire series: us06web.zoom.us/webinar/regi...
Reposted
Excited / nervous to share the “magnum opus” of my postdoc in Andreas Wagner’s lab!
"De-novo promoters emerge more readily from random DNA than from genomic DNA"
This project is the accumulation of 4 years of work, and lays the foundation for my future group. In short, we… (1/4)
"De-novo promoters emerge more readily from random DNA than from genomic DNA"
This project is the accumulation of 4 years of work, and lays the foundation for my future group. In short, we… (1/4)
De-novo promoters emerge more readily from random DNA than from genomic DNA
Promoters are DNA sequences that help to initiate transcription. Point mutations can create de-novo promoters, which can consequently transcribe inactive genes or create novel transcripts. We know lit...
www.biorxiv.org
August 28, 2025 at 6:37 AM
Excited / nervous to share the “magnum opus” of my postdoc in Andreas Wagner’s lab!
"De-novo promoters emerge more readily from random DNA than from genomic DNA"
This project is the accumulation of 4 years of work, and lays the foundation for my future group. In short, we… (1/4)
"De-novo promoters emerge more readily from random DNA than from genomic DNA"
This project is the accumulation of 4 years of work, and lays the foundation for my future group. In short, we… (1/4)
Reposted
New paper @natrevcancer.nature.com on the evolutionary interplay between ageing and cancer 🚨
www.nature.com/articles/s41...
www.nature.com/articles/s41...
The evolution of cancer and ageing: a history of constraint - Nature Reviews Cancer
In this Perspective, de Magalhães explores the evolutionary relationship between cancer and ageing, proposing that the need to minimize cancer risk early in life may contribute to tissue degeneration ...
www.nature.com
August 26, 2025 at 8:06 PM
New paper @natrevcancer.nature.com on the evolutionary interplay between ageing and cancer 🚨
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted
Please RP.
We are thrilled to announce that our lab’s first preprint is out!
”Whole-genome single-cell multimodal history tracing to reveal cell identity transition”
We report HisTrac-seq, a multiomic single-cell molecular recording platform.
www.biorxiv.org/content/10.1...
We are thrilled to announce that our lab’s first preprint is out!
”Whole-genome single-cell multimodal history tracing to reveal cell identity transition”
We report HisTrac-seq, a multiomic single-cell molecular recording platform.
www.biorxiv.org/content/10.1...
August 16, 2025 at 7:15 AM
Please RP.
We are thrilled to announce that our lab’s first preprint is out!
”Whole-genome single-cell multimodal history tracing to reveal cell identity transition”
We report HisTrac-seq, a multiomic single-cell molecular recording platform.
www.biorxiv.org/content/10.1...
We are thrilled to announce that our lab’s first preprint is out!
”Whole-genome single-cell multimodal history tracing to reveal cell identity transition”
We report HisTrac-seq, a multiomic single-cell molecular recording platform.
www.biorxiv.org/content/10.1...
Reposted
Activity of most genes is controlled by multiple enhancers, but is there activation coordinated? We leveraged Nanopore to identify a specific set of elements that are simultaneously accessible on the same DNA molecules and are coordinated in their activation www.biorxiv.org/content/10.1... @embl.org
August 18, 2025 at 12:39 PM
Activity of most genes is controlled by multiple enhancers, but is there activation coordinated? We leveraged Nanopore to identify a specific set of elements that are simultaneously accessible on the same DNA molecules and are coordinated in their activation www.biorxiv.org/content/10.1... @embl.org
Activity of most genes is controlled by multiple enhancers, but is there activation coordinated? We leveraged Nanopore to identify a specific set of elements that are simultaneously accessible on the same DNA molecules and are coordinated in their activation. www.biorxiv.org/content/10.1...
August 18, 2025 at 12:23 PM
Activity of most genes is controlled by multiple enhancers, but is there activation coordinated? We leveraged Nanopore to identify a specific set of elements that are simultaneously accessible on the same DNA molecules and are coordinated in their activation. www.biorxiv.org/content/10.1...
Reposted
Excited to see this published with additional data following our preprint a while back. Cool combination (in our biased view) of controlled TF expression and machine learning to decode chromatin sensitivity. www.sciencedirect.com/science/arti....
August 7, 2025 at 4:20 PM
Excited to see this published with additional data following our preprint a while back. Cool combination (in our biased view) of controlled TF expression and machine learning to decode chromatin sensitivity. www.sciencedirect.com/science/arti....
Reposted
🚨 New preprint from our labs (STOP lab @stoplab.bsky.social & Nojima lab @pol2rna.bsky.social @pyrolyn.bsky.social)! We've been digging into how chromatin remodeler SETD2 controls the start and end of transcription 👇 www.biorxiv.org/cgi/content/... (1/5)
July 16, 2025 at 9:38 AM
🚨 New preprint from our labs (STOP lab @stoplab.bsky.social & Nojima lab @pol2rna.bsky.social @pyrolyn.bsky.social)! We've been digging into how chromatin remodeler SETD2 controls the start and end of transcription 👇 www.biorxiv.org/cgi/content/... (1/5)
Reposted
Our paper describing the Range Extender element which is required and sufficient for long-range enhancer activation at the Shh locus is now available at @nature.com. Congrats to @gracebower.bsky.social who led the study. Below is a brief summary of the main findings www.nature.com/articles/s41... 1/
Range extender mediates long-distance enhancer activity - Nature
The REX element is associated with long-range enhancer–promoter interactions.
www.nature.com
July 2, 2025 at 4:17 PM
Our paper describing the Range Extender element which is required and sufficient for long-range enhancer activation at the Shh locus is now available at @nature.com. Congrats to @gracebower.bsky.social who led the study. Below is a brief summary of the main findings www.nature.com/articles/s41... 1/
Reposted
Join us next Wed, for three amazing ECR researchers_ @fueyoraquel.bsky.social, @kaiamattioli.bsky.social and Laura talk about their work in #FragileNucleosome seminar series!
In case you haven't joined any of the previous 2025 sessions, here is registration link:
us06web.zoom.us/webinar/regi...
In case you haven't joined any of the previous 2025 sessions, here is registration link:
us06web.zoom.us/webinar/regi...
June 14, 2025 at 9:54 AM
Join us next Wed, for three amazing ECR researchers_ @fueyoraquel.bsky.social, @kaiamattioli.bsky.social and Laura talk about their work in #FragileNucleosome seminar series!
In case you haven't joined any of the previous 2025 sessions, here is registration link:
us06web.zoom.us/webinar/regi...
In case you haven't joined any of the previous 2025 sessions, here is registration link:
us06web.zoom.us/webinar/regi...
Reposted
How to find Evolutionary Conserved Enhancers in 2025? 🐣-🐭
Check out our paper - fresh off the press!!!
We find widespread functional conservation of enhancers in absence of sequence homology
Including: a bioinformatic tool to map sequence-diverged enhancers!
rdcu.be/enVDN
github.com/tobiaszehnde...
Check out our paper - fresh off the press!!!
We find widespread functional conservation of enhancers in absence of sequence homology
Including: a bioinformatic tool to map sequence-diverged enhancers!
rdcu.be/enVDN
github.com/tobiaszehnde...
Conservation of regulatory elements with highly diverged sequences across large evolutionary distances
Nature Genetics - Combining functional genomic data from mouse and chicken with a synteny-based strategy identifies positionally conserved cis-regulatory elements in the absence of direct sequence...
rdcu.be
May 27, 2025 at 12:19 PM
How to find Evolutionary Conserved Enhancers in 2025? 🐣-🐭
Check out our paper - fresh off the press!!!
We find widespread functional conservation of enhancers in absence of sequence homology
Including: a bioinformatic tool to map sequence-diverged enhancers!
rdcu.be/enVDN
github.com/tobiaszehnde...
Check out our paper - fresh off the press!!!
We find widespread functional conservation of enhancers in absence of sequence homology
Including: a bioinformatic tool to map sequence-diverged enhancers!
rdcu.be/enVDN
github.com/tobiaszehnde...
Reposted
🚨 New preprint out! Do you think Single Molecule Footprinting and Fiber-seq are super cool but aren't sure how to unlock their full potential? HiddenFoot can help you: www.biorxiv.org/content/10.1...
May 17, 2025 at 5:00 PM
🚨 New preprint out! Do you think Single Molecule Footprinting and Fiber-seq are super cool but aren't sure how to unlock their full potential? HiddenFoot can help you: www.biorxiv.org/content/10.1...
Reposted
Join us on Wednesday next week for two exciting talks on transcription regulation from @kasitc.bsky.social and @davidsuter.bsky.social!
You can register at: us06web.zoom.us/webinar/regi...
You can register at: us06web.zoom.us/webinar/regi...
May 15, 2025 at 6:35 PM
Join us on Wednesday next week for two exciting talks on transcription regulation from @kasitc.bsky.social and @davidsuter.bsky.social!
You can register at: us06web.zoom.us/webinar/regi...
You can register at: us06web.zoom.us/webinar/regi...
Reposted
5/2025 Issue ➡️ www.embopress.org/toc/17444292...
tissue-specific huntingtin interactomes, gene product diversity evolution
Cover: mammalian promoters characterised by low RNA pol II occupancy and high turnover @kasitc.bsky.social @molinalab.bsky.social @arnaudkr.bsky.social
tissue-specific huntingtin interactomes, gene product diversity evolution
Cover: mammalian promoters characterised by low RNA pol II occupancy and high turnover @kasitc.bsky.social @molinalab.bsky.social @arnaudkr.bsky.social
May 8, 2025 at 3:15 PM
5/2025 Issue ➡️ www.embopress.org/toc/17444292...
tissue-specific huntingtin interactomes, gene product diversity evolution
Cover: mammalian promoters characterised by low RNA pol II occupancy and high turnover @kasitc.bsky.social @molinalab.bsky.social @arnaudkr.bsky.social
tissue-specific huntingtin interactomes, gene product diversity evolution
Cover: mammalian promoters characterised by low RNA pol II occupancy and high turnover @kasitc.bsky.social @molinalab.bsky.social @arnaudkr.bsky.social
Reposted
New research by @kasitc.bsky.social @molinalab.bsky.social @arnaudkr.bsky.social reveals limited RNA polymerase II pausing at mouse promoters compared to flies ➡️ www.embopress.org/doi/full/10....
May 8, 2025 at 3:19 PM
New research by @kasitc.bsky.social @molinalab.bsky.social @arnaudkr.bsky.social reveals limited RNA polymerase II pausing at mouse promoters compared to flies ➡️ www.embopress.org/doi/full/10....
Reposted
Pol II Pausing on LSD on the MSB cover! Credits to the amazing creative team @kasitc.bsky.social (right) and Roos (left)! Pleasure to work with this bunch of talented people, here at our Belgian retreat. Paper: doi.org/10.1038/s443...
May 2, 2025 at 9:30 AM
Pol II Pausing on LSD on the MSB cover! Credits to the amazing creative team @kasitc.bsky.social (right) and Roos (left)! Pleasure to work with this bunch of talented people, here at our Belgian retreat. Paper: doi.org/10.1038/s443...
Reposted
Don't forget to checkout our annex pre-print bit.ly/3EkRqJh for a sense on our new 💻 tool FootprintCharter, for the unsupervised footprint quantification from single molecule data. Available on Bioconductor at bit.ly/3XLe8RC.
April 8, 2025 at 3:52 PM
Don't forget to checkout our annex pre-print bit.ly/3EkRqJh for a sense on our new 💻 tool FootprintCharter, for the unsupervised footprint quantification from single molecule data. Available on Bioconductor at bit.ly/3XLe8RC.
Reposted
Having a stressful day? Lay back, crack a beer open and read about how chromatin accessibility responds to perturbations of TF binding at the single molecule level bit.ly/3XQMFxN. I'm incredibly thankful to my PhD mentors @arnaudkr.bsky.social and Judith Zaugg for these super productive years!!
April 8, 2025 at 3:41 PM
Having a stressful day? Lay back, crack a beer open and read about how chromatin accessibility responds to perturbations of TF binding at the single molecule level bit.ly/3XQMFxN. I'm incredibly thankful to my PhD mentors @arnaudkr.bsky.social and Judith Zaugg for these super productive years!!
Reposted
Happy to share the latest story from @arnaudkr.bsky.social's lab @embl.org! With @guidobarzaghi.bsky.social, we used Single Molecule Footprinting to quantify how often chromatin is accessible at enhancers after TF and chromatin environment changes! Check our preprint bit.ly/3XQMFxN + thread ⬇️ 1/11
April 8, 2025 at 1:52 PM
Happy to share the latest story from @arnaudkr.bsky.social's lab @embl.org! With @guidobarzaghi.bsky.social, we used Single Molecule Footprinting to quantify how often chromatin is accessible at enhancers after TF and chromatin environment changes! Check our preprint bit.ly/3XQMFxN + thread ⬇️ 1/11
Excited to see this out!
Using single-molecule footprinting, we showed that Pol II occupancy is lower at mouse than fly promoters. This low Pol II occupancy is explained by high Pol II turnover and low transcription initiation at mouse promoters.
Using single-molecule footprinting, we showed that Pol II occupancy is lower at mouse than fly promoters. This low Pol II occupancy is explained by high Pol II turnover and low transcription initiation at mouse promoters.
The importance of moving away from bulk! Occupancy of Pol II at promoters is dramatically different between fly and mouse cells! When looking single molecule! Proud of the team! @kasitc.bsky.social @molinalab.bsky.social doi.org/10.1038/s443...
April 2, 2025 at 1:50 PM
Excited to see this out!
Using single-molecule footprinting, we showed that Pol II occupancy is lower at mouse than fly promoters. This low Pol II occupancy is explained by high Pol II turnover and low transcription initiation at mouse promoters.
Using single-molecule footprinting, we showed that Pol II occupancy is lower at mouse than fly promoters. This low Pol II occupancy is explained by high Pol II turnover and low transcription initiation at mouse promoters.