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Ian Mellis

@ianmellis

host-virus interactions, gene regulation and genetic engineering, gene and cell therapies | transfusion medicine and virology @columbiauniversity https://ianmellis.github.io/

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20.11.2024
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Latest posts by Ian Mellis @ianmellis

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Today we’re excited to share Keeping SCORE, a framework that turns any diffusion model into a thermodynamic inference machine.
Using only a model’s score function, we compute exact class likelihoods and uncertainty—and even decompose which features drove the decision. www.biorxiv.org/content/10.1...

02.12.2025 01:32 👍 14 🔁 2 💬 2 📌 2
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📢 Our Dept. of Systems Biology at Columbia University has an open tenure-track Assistant Professor position in the broad area of quantitative biology. Come join our awesome department in NYC! Please circulate.
apply.interfolio.com/177622
Suggested deadline: 12/15/2025.
@columbiasysbio.bsky.social

15.11.2025 04:02 👍 31 🔁 37 💬 0 📌 1

Title: Research Assistant
Link for applicants: opportunities.columbia.edu/cw/en-us/job...

Title: Technician B
Link for applicants: opportunities.columbia.edu/cw/en-us/job...

16.10.2025 14:09 👍 0 🔁 0 💬 0 📌 0

Excited to share a job opportunity to work with me and colleagues at Columbia! If you or someone you know would like to be a Research Technician/Assistant working at the interface of molecular systems biology, virology, immunology, and gene and cell therapies, please reach out! (Links below)

16.10.2025 14:09 👍 1 🔁 0 💬 1 📌 1

Highly productive and innovative group doing elegant quantitative bio spanning theory, experimental and computational methods, and actual applications. If you're interested in a postdoctoral position studying cancer, development, or single cell biology, reach out to Yogesh!

19.09.2025 13:17 👍 4 🔁 2 💬 0 📌 0
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Accurate characterization of CRISPR-Cas9 genome editing outcomes and mosaicism with near-perfect long reads Background: Genetic mosaicism is a consequence of CRISPR-Cas9 genome editing that is difficult to study, especially when it involves structural variants occurring at low frequency. A comprehensive ana...

New preprint! With PureTarget we achieved >1000× coverage of targets with ~5kb PacBio reads at QV39. This enabled high-resolution analysis of CRISPR-Cas9 outcomes

Key finding: Some CRISPR-mutations may only emerge in the second generation, due to germ cell mosaicism

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

10.09.2025 07:34 👍 5 🔁 3 💬 0 📌 0

Great case, Naveen! Will definitely keep this in mind

09.09.2025 18:29 👍 1 🔁 0 💬 1 📌 0
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Excited to share our latest by my postdoc Ben KS: we use statistical physics & Bayesian inference to model genome-wide perturbation outcomes. Remarkably, perturbation responses are encoded in gene "chatter" even before the perturbation–a fundamental insight with broad implications
shorturl.at/2LHbw

06.07.2025 22:11 👍 71 🔁 25 💬 4 📌 2

I'm stoked to have this long-term and highly collaborative effort out in the wild. We present an experimental evolution system to quantitatively study the rapid evolutionary dynamics of B-cell affinity maturation. These evolutionary mechanisms underpin antibody responses and immune memory formation.

07.06.2025 23:30 👍 39 🔁 14 💬 1 📌 0
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SARS-CoV-2 neutralizing antibody specificities differ dramatically between recently infected infants and immune-imprinted individuals The immune response to viral infection is shaped by past exposures to related virus strains, a phenomenon known as imprinting. For SARS-CoV-2, much of the population has been imprinted by a viral spik...

In new study, we find dramatic differences in specificities of serum neutralizing antibodies in infants w single infection by a recent SARS-CoV-2 strain versus adults/children imprinted by an early viral strain.

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

21.01.2025 17:52 👍 163 🔁 60 💬 12 📌 6

It's an honor to be part of this lecture series to honor Casey's legacy.

06.01.2025 14:18 👍 9 🔁 3 💬 0 📌 0

Amazing work from @yogogurt.bsky.social lab and Arispe lab on vascular development. Tour de force of quantitative dev bio with thoughtful applications of high-throughput techniques, imaging, stochastic modeling, and more. Congrats to @daniellepi.bsky.social, Jonas, and the team!

12.12.2024 01:33 👍 2 🔁 0 💬 0 📌 0