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Jonas Koeppel

@jonaskoeppel.bsky.social
249 followers 292 following 27 posts

Postdoc in the Shendure & Pinglay labs @UW Trying to understand and engineer our wonderfully weird genomes 🧬

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Reposted by Jonas Koeppel
Mike Dorrity @mwdorr.bsky.social · 19/06/2026
First pre-print from the lab, a collaborative effort led by Jess Bourn @bournsupremacy.bsky.social, a fantastic PhD in my group. We resolve a key problem in development + evolution: how do we quantify heterochrony and link temporal variation to phenotype? www.biorxiv.org/content/10.6...
biorxiv.org
Quantitative mapping of heterochrony to species-specific phenotypes
The genetic program of animal development is conserved, but its rate of execution varies across species. Heterochrony, shifts in the relative timing of developmental events, generates phenotypic varia...
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Sudarshan Pinglay @sudpinglay.bsky.social · 04/06/2026
How much of the human genome is essential? Two pieces out today from our lab: 1) a method to map essential genomic intervals at gigabase scale, and 2) an argument that it's time to consider synthesizing a minimal human genome. biorxiv.org/content/10.6... nature.com/articles/d41...
nature.com
Why a synthetic human genome is still worth building
A decade on from the launch of an ambitious project, it’s time to revisit the reasons for constructing a human genome from scratch.
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Jonas Koeppel @jonaskoeppel.bsky.social · 04/06/2026
1/n What fraction of the human genome is essential for cells? Excited to share our preprint that explores this question by combining an unusual CRISPR system, phage promoters, and thousands of deletion launchpads. @sudpinglay.bsky.social @jshendure.bsky.social www.biorxiv.org/content/10.6...
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Jay Shendure @jshendure.bsky.social · 10/04/2026
Latest from Shendure & Qiu labs (@cxqiu.bsky.social) )! We combined a new 4M cell mouse whole embryo scATAC-seq atlas (E10-P0), millions of 'evolutionarily coherent' orthologs from 241 mammalian genomes (Zoonomia), and the CREsted CNN framework (@steinaerts.bsky.social).
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Leopold Parts @leopoldparts.bsky.social · 05/11/2025
New 🧬✂️ pre-print! We show that paired prime editing can efficiently generate large deletions — even >1 Mb — with high precision and at scale. We use this to perform the first pooled prime deletion screen across the human genome. 🔗 biorxiv.org/content/10.1... A short thread (by Juliane Weller)👇
biorxiv.org
Generating long deletions across the genome with pooled paired prime editing screens
Engineered deletions are a powerful probe for studying genome architecture, function, and regulation. Yet, the lack of effective methods to create them in large numbers and at multi-kilobase scale has...
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Daniel Ibrahim @danielibrahim.bsky.social · 16/10/2025
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...
biorxiv.org
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...
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Jay Shendure @jshendure.bsky.social · 14/10/2025
Super excited about first Shendure/Baker Lab collaboration & preprint on a multiplex sequencing-based strategy for screening de novo proteome editors in mammalian cells. Kudos to the brilliant Chase Suiter (not here) & @greenahn.bsky.social on the work! Preprint here: www.biorxiv.org/content/10.1...
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Leopold Parts @leopoldparts.bsky.social · 10/02/2025
We're hiring to expand on the work to understand the human genome by engineering it! lnkd.in/da-gitNc
lnkd.in
Wellcome Sanger Institute hiring Postdoctoral Fellow | Generative and Synthetic Genomics in Hinxton, England, United Kingdom | LinkedIn
Posted 2:51:51 PM. Do you want to help us improve human health and understand life on Earth? Make your mark by shaping…See this and similar jobs on LinkedIn.
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Reposted by Jonas Koeppel
Di Jiang @dijiang319.bsky.social · 01/02/2025
@science.org Genome recombination on demand | Science www.science.org/doi/10.1126/... a Perspective by @seczmarta.bsky.social Lars Steinmetz @stanford.edu on two studies bit.ly/4hzFRMg + bit.ly/4jyT4Hf that generate large genome rearrangements in mammalian cells @ unprecedented scale #synbio #genome
science.org
Genome recombination on demand
Large genome rearrangements in mammalian cells can be generated at scale
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Di Jiang @dijiang319.bsky.social · 01/02/2025
🧬@science.org Randomizing the human genome by engineering recombination between repeat elements bit.ly/4jyT4Hf @jonaskoeppel.bsky.social @f-raphael.bsky.social @geochurch.bsky.social @proftomellis.bsky.social @leopoldparts.bsky.social +al. @sangerinstitute.bsky.social @harvardmed.bsky.social #synbio
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Sudarshan Pinglay @sudpinglay.bsky.social · 31/01/2025
If tinkering with genomes - designing, writing, shuffling and augmenting them excites you, come join us! We are hiring at all levels. www.pinglay-lab.com
t.co
https://www.pinglay-lab.com/
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Sudarshan Pinglay @sudpinglay.bsky.social · 31/01/2025
Now out in @science.org w/ @jshendure.bsky.social we present 'Genome-shuffle-seq': a method to shuffle mammalian genomes and characterize the impact of structural variants (SVs) with single-cell resolution in one experiment. www.science.org/doi/10.1126/...
science.org
Multiplex generation and single-cell analysis of structural variants in mammalian genomes
Studying the functional consequences of structural variants (SVs) in mammalian genomes is challenging because (i) SVs arise much less commonly than single-nucleotide variants or small indels and (ii) ...
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Reposted by Jonas Koeppel
Nature Biotechnology @natbiotech.nature.com · 31/01/2025
Rearranging mammalian genomes with recombinases to study structural variants at scale provides insights into genome organization and dispensability #NBTHighlight www.science.org/doi/10.1126/... and www.science.org/doi/10.1126/...
science.org
Randomizing the human genome by engineering recombination between repeat elements
We lack tools to edit DNA sequences at scales necessary to study 99% of the human genome that is noncoding. To address this gap, we applied CRISPR prime editing to insert recombination handles into re...
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Reposted by Jonas Koeppel
Leopold Parts @leopoldparts.bsky.social · 31/01/2025
We're delighted to share our work on scrambling the human genome using prime editing, repetitive elements, and recombinases in @science.org , led by @jonaskoeppel.bsky.social , @f-raphael.bsky.social , with @proftomellis.bsky.social and George Church. www.science.org/doi/10.1126/...
science.org
Randomizing the human genome by engineering recombination between repeat elements
We lack tools to edit DNA sequences at scales necessary to study 99% of the human genome that is noncoding. To address this gap, we applied CRISPR prime editing to insert recombination handles into re...
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Reposted by Jonas Koeppel
Leopold Parts @leopoldparts.bsky.social · 15/01/2025
We are happy to share our enhancer scramble story, a strategy to create hundreds of stochastic deletions, inversions, and duplications within mammalian gene regulatory regions and associate these new architectures with gene expression levels 🧵 www.biorxiv.org/content/10.1...
Enhancer scrambling strategy
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xinhexue.bsky.social @xinhexue.bsky.social · 28/12/2024
Excited to share my latest preprint on establishing a generalizable toolkit for decoding the gene regulatory landscape using two types of CRISPR screens. Big thanks to my amazing mentor @nevillesanjana.bsky.social for the in-depth thread below. Looking forward to feedback and comments!
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Leopold Parts @leopoldparts.bsky.social · 02/12/2024
Does my mutation have the same impact as yours? Population genetics 🤠 🥸 🤓 🤡 meets single cell CRISPRi ⚡ ! www.biorxiv.org/content/10.1... Led by Claudia Feng, Oliver Stegle, Britta Velten, @sangerinstitute.bsky.social .
lnkd.in
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Leopold Parts @leopoldparts.bsky.social · 16/11/2024
Structural variants are ripe for interrogation using genome engineering. Jonas Koeppel Juliane Weller Thomas Vanderstichele (Wellcome Sanger Institute) and I review technology progress, insights gained to date, and challenges and promise for the road ahead. www.nature.com/articles/s41588-024-01981-7
nature.com
Engineering structural variants to interrogate genome function - Nature Genetics
Structural variations (SVs) impact gene expression, genome stability and disease susceptibility. This Review discusses recent advances in genome-engineering tools that enable precise SV generation and...
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