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Jesse Raab

@jraab

Chromatin and cancer research at UNC Chapel Hill. Opinions are my own. Raab-lab.org

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Latest posts by Jesse Raab @jraab

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Pls re-post: My department @oxfordbiochemistry.bsky.social are recruiting for several new faculty positions (links below). Broad search in molecular biology/biochemistry, across prokaryotes and eukaryotes. Interested in understanding life at the molecular level, this job might be for you!
1/n

05.03.2026 21:35 πŸ‘ 87 πŸ” 125 πŸ’¬ 2 πŸ“Œ 3

I am - thanks, I'll add it to the list

07.03.2026 14:34 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Today's grant reviewing soundtrack is brought to you by Outer Wilds. I'm on a videogame soundtrack kick

07.03.2026 14:27 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Graph of award probability of R35 and R01 from NIH factbook as a function of review rank percentile. As is apparent, 2025 is a significant departure, with lower award probabilities at all scores <40 and significant departures from norm, where even being in the top 10% is no longer a nearly certain indicator of success.

Data source: https://report.nih.gov/nihdatabook/report/302

Graph of award probability of R35 and R01 from NIH factbook as a function of review rank percentile. As is apparent, 2025 is a significant departure, with lower award probabilities at all scores <40 and significant departures from norm, where even being in the top 10% is no longer a nearly certain indicator of success. Data source: https://report.nih.gov/nihdatabook/report/302

The data is in: the NIH goalposts have shifted.

What were once almost certain fundable scores have become coin flips and what used to be likely grants have become aspirational, leading to fewer awards.

Another manifestation of how HHS policies have led to fewer awards and less science.

07.03.2026 01:59 πŸ‘ 680 πŸ” 416 πŸ’¬ 19 πŸ“Œ 61
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Native chromatome profiling reveals hundreds of metabolic enzymes in the nucleus across tissues - Nature Communications Here proteomic chromatome analysis shows metabolic enzymes widely localize to chromatin in cancer in a tissue-specific manner. Nuclear enzymes affect DNA damage/repair and transcription, revealing non...

New paper out in Nature Communications:
www.nature.com/articles/s41...
We found >250 metabolic enzymes on chromatin.
Only ~20 had been reported before.
This means hundreds of metabolic enzymes may have unexplored nuclear roles.

06.03.2026 15:11 πŸ‘ 49 πŸ” 15 πŸ’¬ 2 πŸ“Œ 2

disco elysium soundtrack is excellent grant reviewing music

06.03.2026 16:14 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I haven't moved over to positron, and rstudio can be run interactively on the cluster easily, although not with the assistant. Another subscription is kind of annoying though

05.03.2026 23:57 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Self-clustering of three CBX2 molecules drives PRC2 to promote facultative heterochromatinization of Polycomb target genes Ingersoll et al. uncover that approximately three CBX2 molecules drive PRC2 clustering and H3K27me3 deposition in mESCs. This process supports a model in which few CBX2 molecules self-cluster on chrom...

Self-clustering of three CBX2 molecules drives PRC2 to promote facultative heterochromatinization of Polycomb target genes

www.cell.com/molecular-ce...

05.03.2026 20:40 πŸ‘ 8 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

That is 667 scientific labs funded for 5 years each.
Every day.

05.03.2026 16:48 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

Funded by NIH + NSF. No private investor funds a 16-week mouse study on OL gene biology.

Federal science builds the foundation industry stands on. Neurological disease costs the U.S. $800B/year. This is what the return on that investment looks like.

#NIH #NSF #TaxpayerInvestment #Neurotech

04.03.2026 23:18 πŸ‘ 29 πŸ” 13 πŸ’¬ 1 πŸ“Œ 0

Claude code remote control is wild. Running a random quick idea I had on my desktop while approving agent tasks from my phone

05.03.2026 01:13 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Accessory subunits of PRC2 mimic H3K27me3 to restrict the spread of Polycomb domains Some proteins mimic the repressive mark H3K27me3, but the physiological relevance of this phenomenon was unclear. Agius et al. show that the PRC2 subunits JARID2 and PALI1 mimic H3K27me3 to antagonize...

1/ 🧡 In our new paper, we show that JARID2 and PALI1 mimic H3K27me3 to antagonise PRC2. www.cell.com/molecular-ce...

04.03.2026 23:58 πŸ‘ 55 πŸ” 23 πŸ’¬ 1 πŸ“Œ 2

Over the weekend, I started collecting/organizing a list of cool #rstats skills for LLMs at github.com/christopherk.... Please open an issue or PR in any awesome additions you see!

Includes a section for helpful posts like @ivelasq3.bsky.social's⬇️

04.03.2026 22:00 πŸ‘ 40 πŸ” 12 πŸ’¬ 2 πŸ“Œ 0

Great to see this work out, led by Jon Rosen and co-supervised Karen Mohlke @klmohlke.bsky.social!

Connecting to some recent threads here:

04.03.2026 16:33 πŸ‘ 22 πŸ” 10 πŸ’¬ 1 πŸ“Œ 0

Also, $550 billion is a decade of science spending in America (NIH and NSF).

Just completely unconscionable.

04.03.2026 13:51 πŸ‘ 12 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Evolution navigated billions of challenges to get to us to where we are today. Directed evolution compresses this to a 1D axis.

Imagine if you could sample 200 dimensions at once, with data to boot πŸ“ˆ

First @chorylab.bsky.social PACE preprint on our new system to tackle this: bit.ly/turboprance

04.03.2026 13:35 πŸ‘ 22 πŸ” 11 πŸ’¬ 1 πŸ“Œ 1
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A Few Claude Skills for R Users – R Works The community has come together to create some great Claude Skills that you can try out today.

I rounded up a few Claude Skills for #RStats users.

Huge thanks to the creators who developed them. They share Skills for everything from tidyverse code to brand.yml files to learning while using AI.

Hope the list is useful, and please let me know what I missed! 🧑

rworks.dev/posts/claude...

03.03.2026 14:05 πŸ‘ 135 πŸ” 39 πŸ’¬ 4 πŸ“Œ 4

Our preprint is published in MSB! This time with the correct preprint post below! link.springer.com/article/10.1...

03.03.2026 11:39 πŸ‘ 5 πŸ” 4 πŸ’¬ 1 πŸ“Œ 0
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Combined assembloid modeling and 3D whole-organ mapping captures the microanatomy and function of the human fallopian tube Tunable assembloid modeling and CODA tissue mapping, in tandem, design a tissue-validated in vitro model of the fallopian tube.

I think there is a need for a complete re-think for organoid modeling.

As long as the architecture of organoids that you produce is not directly compared to a 3D map of the organ (say, a fallopian tube) or disease to be modeled, it will be approximate.

More here: www.science.org/doi/full/10....

01.03.2026 20:17 πŸ‘ 42 πŸ” 7 πŸ’¬ 1 πŸ“Œ 1
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"Here, we present SPAtial Cell Exploration (SPACE), a spatial CRISPR screening platform that integrates whole-transcriptome profiling (~18,000 genes), multiplexed protein detection (~68 markers), and CRISPR perturbation mapping at subcellular resolution"

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

01.03.2026 13:18 πŸ‘ 21 πŸ” 12 πŸ’¬ 0 πŸ“Œ 0

The nuclear oncoprotein SET is necessary for MLL/KMT2A binding and transcriptional elongation. https://www.biorxiv.org/content/10.64898/2026.02.26.708410v1

28.02.2026 14:47 πŸ‘ 1 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

THERE IS ONLY ONE TRUE WAY TO CODE AND IT IS TIDY. All others will perish on the altar of messiness. MUAHAHAHAHAAAAAAAAAAAAAA

27.02.2026 18:04 πŸ‘ 25 πŸ” 6 πŸ’¬ 1 πŸ“Œ 0

Incredibly proud to share our new preprint, lead by the Incomparable Rithika Sankar.
Here we temporally dissect the role of FACT in mES cells, finding that FACT loss drives progressive deterioration of chromatin architecture, leading to transcriptional collapse.
www.biorxiv.org/content/10.6...

27.02.2026 21:27 πŸ‘ 43 πŸ” 26 πŸ’¬ 1 πŸ“Œ 1

Indeed. New grants are not getting funded, already funded grants are not getting paid, and non-competitive renewals are being held up.

Focusing on the top line budget, instead of looking at what is really happening on β€œthe ground” is deeply misguided.

27.02.2026 18:23 πŸ‘ 354 πŸ” 182 πŸ’¬ 10 πŸ“Œ 3

New version of our preprint on bioRxiv about bioRxiv up. Now that’s what I call a revision – 6 years after the first version!
It has new data about our progress and highlights from a massive user survey. 1/n
www.biorxiv.org/content/10.1...

26.02.2026 16:05 πŸ‘ 78 πŸ” 43 πŸ’¬ 1 πŸ“Œ 4
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Why I have changed my mind about AI and you should too Both boosters and sceptics have strongly held opinions on AI tools like ChatGPT, but after an experiment in vibe coding, I have realised that both camps are wrong, says Jacob Aron

I have written a piece articulating what I believe is a reasonably new position on AI, or at least one extremely underrepresented in the discourse, and I hope people will read it. The full piece is behind the New Scientist paywall, but I will share some snippets www.newscientist.com/article/2516...

26.02.2026 09:40 πŸ‘ 50 πŸ” 15 πŸ’¬ 5 πŸ“Œ 14

The beta of integrating this into rstudio is pretty handy for a lot of stuff I'd have to dig in documentation for

24.02.2026 17:48 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Happy to share scHiCAR, an ultra-high throughout (millions of cells), low cost (5 cents/cell including NGS), and trimodal platform for integrated single-cell level analysis of mRNA, open chromatin, and 5-kb resolution looping with ground-truth data the same individual cell.

20.02.2026 02:51 πŸ‘ 78 πŸ” 33 πŸ’¬ 0 πŸ“Œ 6

I love this -- a really fantastic start at turning LLM-assisted coding from something folks fear will sap their skills into a great opportunity for clear-headed learning and continuing education. And instead of making those separate activities, why not both at once? Try it out!

20.02.2026 04:31 πŸ‘ 14 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0

You guys know your voicemail pin?

18.02.2026 15:00 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0