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Jonathan Frazer

@jonnyfrazer.bsky.social

Probabilistic machine learning to address questions in evolution and health #EvolutionaryMedicine. PI at the Centre for Genomic Regulation, co-leading a group with Mafalda Dias. Previously Harvard.

3,528 Followers  |  748 Following  |  99 Posts  |  Joined: 02.10.2023  |  2.0912

Latest posts by jonnyfrazer.bsky.social on Bluesky

Home - ProbGen 2026 Your Site Description

The 2026 Probabilistic Modeling in Genomics (ProbGen) meeting will be held at UC Berkeley, March 25-28, 2026. We have an amazing list of keynote speakers and session chairs:
probgen2026.github.io

Please help spread the news.

06.06.2025 17:52 โ€” ๐Ÿ‘ 63    ๐Ÿ” 35    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
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Borzoi-informed fine mapping improves causal variant prioritization in complex trait GWAS Genome-wide association studies (GWAS) have identified thousands of trait-associated loci. Prioritizing causal variants within these loci is critical for characterizing trait biology. Statistical fine...

I'm excited to share work on a research direction my team has been advancing: connecting machine learning derived genetic variant embeddings to downstream tasks in human genetics. This work was led by the amazing Divyanshi Srivastava! www.biorxiv.org/content/10.1...

21.07.2025 14:50 โ€” ๐Ÿ‘ 32    ๐Ÿ” 15    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

*Easter egg alert* NOT in the published paper. We also benchmarked Evo 2 and while it did better than other gLMs (consistent that scale can improve gLMs), it still falls short of a basic CNN trained using one-hot sequences and far short of supervised SOTA

16.07.2025 12:16 โ€” ๐Ÿ‘ 23    ๐Ÿ” 5    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Excited to be presenting my paper "Deep Learning is Not So Mysterious or Different" tomorrow at ICML, 11 am - 1:30 pm, East Exhibition Hall A-B, E-500. I made a little video overview as part of the ICML process (viewable from Chrome): recorder-v3.slideslive.com#/share?share...

17.07.2025 00:16 โ€” ๐Ÿ‘ 26    ๐Ÿ” 5    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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EurIPS is coming! ๐Ÿ“ฃ Mark your calendar for Dec. 2-7, 2025 in Copenhagen ๐Ÿ“…

EurIPS is a community-organized conference where you can present accepted NeurIPS 2025 papers, endorsed by @neuripsconf.bsky.social and @nordicair.bsky.social and is co-developed by @ellis.eu

eurips.cc

16.07.2025 22:00 โ€” ๐Ÿ‘ 127    ๐Ÿ” 65    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 17
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A Collectivist, Economic Perspective on AI Information technology is in the midst of a revolution in which omnipresent data collection and machine learning are impacting the human world as never before. The word "intelligence" is being used as...

What if AI isnโ€™t about building solo geniuses, but designing social systems?
Michael Jordan advocates blending ML, economics, and uncertainty management to prioritize social welfare over mere prediction.
A must-read rethink.
arxiv.org/abs/2507.062...

13.07.2025 13:10 โ€” ๐Ÿ‘ 35    ๐Ÿ” 9    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Check out our latest work on the evolution of animal genome regulation out today in @nature.com. Nicely summarized below by @ianakim.bsky.social.
www.nature.com/articles/s41...

This is a major output from our ERC-StG project Evocellmap @erc.europa.eu at @crg.eu

07.05.2025 15:32 โ€” ๐Ÿ‘ 163    ๐Ÿ” 55    ๐Ÿ’ฌ 8    ๐Ÿ“Œ 5

One thing that really bothers me with the new "virtual cell" terminology is that it is currently largely focused on a very narrow definition of models that can predict effects of trans perturbations (gene dosage, drugs etc) on gene expression. 1/

28.06.2025 10:38 โ€” ๐Ÿ‘ 103    ๐Ÿ” 30    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

New preprint - collab with the groups of @mehurles.bsky.social and @dr-appie.bsky.social. We imputed missing fluid intelligence test scores into ~170k @ukbiobank.bsky.social indivs & showed how this reduces bias and increases power for rare+common variant analyses. www.medrxiv.org/content/10.1...

21.06.2025 08:58 โ€” ๐Ÿ‘ 20    ๐Ÿ” 7    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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๐Ÿšจ New paper ๐Ÿšจ RNA modeling just got its own Gym! ๐Ÿ‹๏ธ Introducing RNAGym, large-scale benchmarks for RNA fitness and structure prediction.
๐Ÿงต 1/9

18.06.2025 19:35 โ€” ๐Ÿ‘ 40    ๐Ÿ” 16    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
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There are many domain-specific noise processes for discrete diffusion, but masking dominates! Why? We show masking exploits a key property of discrete diffusion, which we use to unlock the potential of those structured processes and beat masking! w/ Nate Gruver and @andrewgwils.bsky.social 1/7

16.06.2025 14:20 โ€” ๐Ÿ‘ 5    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1

It's great to see some new notices of funding opportunities from NIH, but here's a reminder that Harvard researchers remain ineligible to apply for any federal grants.

"Harvard should no longer seek GRANTS from the federal government, since none will be provided."

www.harvard.edu/research-fun...

14.06.2025 13:39 โ€” ๐Ÿ‘ 382    ๐Ÿ” 96    ๐Ÿ’ฌ 16    ๐Ÿ“Œ 3
Lund University launches largest-ever global recruitment drive for researchers Lund University. Lund Universityโ€™s body of researchers is getting reinforcements. If all goes according to plan, no fewer than 25 new researchers from all over the world will arrive in Lund this autum...

โ€œThe search is on for 25 researchers from around the world in Lund Universityโ€™s largest ever international recruitment drive. The main focus will be on AI research and other areas in which the University has a strategic focus.โ€

www.lunduniversity.lu.se/article/lund...

12.06.2025 19:07 โ€” ๐Ÿ‘ 19    ๐Ÿ” 14    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
2025โ€“2026 gCS Computational Biology Internship (9 months)  2025โ€“2026 gCS Computational Biology Internship (9 months) Department Summary gRED Computational Sciences (gCS) is on a mission to partner across the organization to realize the potential of data, tech...

๐Ÿšจ Internship Alert! ๐Ÿšจ
Exciting opportunity @Genentech for a Computational Biology intern in Aging Research! ๐Ÿงฌ Work on #single-cell transcriptomics & imaging data to advance #aging biology insights with @mkoutrouli.bsky.social & me. Applications due June 26: lnkd.in/dBE28Wtk

12.06.2025 05:59 โ€” ๐Ÿ‘ 7    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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โœˆ๏ธ ๐“๐ซ๐š๐ฏ๐ž๐ฅ ๐†๐ซ๐š๐ง๐ญ๐ฌ: ๐๐ซ๐ข๐ง๐ ๐ข๐ง๐  ๐†๐ฅ๐จ๐›๐š๐ฅ ๐•๐จ๐ข๐œ๐ž๐ฌ ๐ญ๐จ #ESEB2025

๐ŸŒ At #ESEB2025, we believe great science should be accessible to all, regardless of geography or background.

๐Ÿ“… ๐„๐ฑ๐ฉ๐ฅ๐จ๐ซ๐ž ๐š๐ฏ๐š๐ข๐ฅ๐š๐›๐ฅ๐ž ๐ ๐ซ๐š๐ง๐ญ๐ฌ:
ย ๐Ÿ”— https://lnkd.in/dXRzeUks

12.06.2025 08:14 โ€” ๐Ÿ‘ 3    ๐Ÿ” 6    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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End-to-end differentiable homology search for protein fitness prediction.

@yaringal.bsky.social @deboramarks.bsky.social @pascalnotin.bsky.social

arxiv.org/abs/2506.089...

11.06.2025 19:00 โ€” ๐Ÿ‘ 32    ๐Ÿ” 9    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Average zero-shot mutation effect predictions across related sequences to reduce noise and improve accuracy.

@cwjpugh.bsky.social @paulinanunezv.bsky.social @jonnyfrazer.bsky.social Mafalda Dias

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

09.06.2025 14:48 โ€” ๐Ÿ‘ 20    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Also, Charlie's #VariantEffect25 talk is available here www.youtube.com/watch?v=johJ...

07.06.2025 18:30 โ€” ๐Ÿ‘ 11    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Reminder that the MSCA postdoctoral program exists. If you have a PhD and want to work in a European lab, you have until September to apply. Just contact them now.

ec.europa.eu/info/funding...

06.06.2025 17:47 โ€” ๐Ÿ‘ 30    ๐Ÿ” 24    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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๐Ÿ“ฃ Latest from the lab: Performance of deep-learning-based approaches to improve polygenic scores www.nature.com/articles/s41...

Its thought deep learning will substantially improve PGS but the reality is MANY have tried but no/little gain has been seen so far. Here we report our negative results.

05.06.2025 13:36 โ€” ๐Ÿ‘ 197    ๐Ÿ” 82    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 12
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Population-scale inheritance analysis of 858,635 individuals reveals North Sea migration from the Middle Ages to the Industrial Revolution The North Sea's historical migrations have impacted the genetic structure of its neighbouring populations. We analysed haplotype sharing among 858,635 modern individuals from Denmark and Britain to in...

We have updated our preprint about 850,000 person UK-Danish haplotype sharing - sheding light on the rich history each person carries with them in their DNA and comparing this to historical records. Xiaolei Zhang postdoc in my group led this work. www.biorxiv.org/content/10.1...

04.06.2025 22:17 โ€” ๐Ÿ‘ 33    ๐Ÿ” 10    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
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Do protein language models store different structural elements in factorizable subnetworks?

To find out, we masked out PLM weights to suppress performance on CATH subcategories or secondary structure elements while maintaining performance on other sequences or residues.

02.06.2025 15:03 โ€” ๐Ÿ‘ 26    ๐Ÿ” 5    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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The genetic architecture of an allosteric hormone receptor Many proteins function as switches, detecting chemicals and transducing their concentrations into cellular responses. Receptor switches are key to the integration of environmental signals, yet it is n...

1 plant hormone receptor โ˜˜๏ธ
3,500 mutants, to single-site saturation ๐Ÿงฌ
>45,000 binding and abundance measurements ๐Ÿ“ถ

Very happy to present our latest work โ€“ where deep mutational scanning meets the world of small molecules.โ€จโ€จ

www.biorxiv.org/content/10.1...โ€จโ€จ

With @benlehner.bsky.social

[1/7]

02.06.2025 13:36 โ€” ๐Ÿ‘ 48    ๐Ÿ” 23    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0

I have an opportunity to hire a staff scientist for my lab. Looking for someone with outstanding skillset in ML/statistics, genomics applications; interest in mentoring, strong publication record, PD experience required.

Email CV to me+cc my assistant (see 'contact' on my website). Ad to follow.

01.06.2025 15:33 โ€” ๐Ÿ‘ 82    ๐Ÿ” 108    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 3
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We're thrilled to introduce PromoterAI โ€” a tool for accurately identifying promoter variants that impact gene expression. ๐Ÿงต (1/)

29.05.2025 18:29 โ€” ๐Ÿ‘ 60    ๐Ÿ” 28    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 2

If I was applying for PhD positions, Eliโ€™s group would be at the top of my list.

29.05.2025 17:49 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

NIH funding supporting the HMMER and Infernal software projects has been terminated. NIH states that our work, as well as all other federally funded research at Harvard, is of no benefit to the US.

22.05.2025 12:42 โ€” ๐Ÿ‘ 287    ๐Ÿ” 232    ๐Ÿ’ฌ 37    ๐Ÿ“Œ 46
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Curiosity underlies a breakthrough in rare disease We must recognise and protect the pipelines that lead from research to real-world benefit

Both translational and fundamental curiosity-driven research are needed to fuel the incredible progress we're seeing in genomic medicine; an important message in this article and and some lovely quotes from @sarahlwynn.bsky.social
www.ft.com/content/25dd...

29.05.2025 08:44 โ€” ๐Ÿ‘ 18    ๐Ÿ” 9    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1

Thank you so much!

26.05.2025 19:03 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Want to improve your protein or genomic language modelโ€™s performance at zero-shot variant effect prediction? We propose a simple adjustment to likelihood-based predicton

26.05.2025 17:33 โ€” ๐Ÿ‘ 23    ๐Ÿ” 6    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

@jonnyfrazer is following 20 prominent accounts