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Posts by Davide Sala

It’s easier to improve from 24 than from 78, isn’t?! 🙂

1 month ago 0 0 0 0

Maybe too complicated due to many chiral centers (9), but in trying to reproduce 9OQ1, I got the Sucralose with the wrong chirality. The pose was close, though.

2 months ago 0 0 0 0
AFsample3: Generating and selecting multiple conformational states with Alphafold3 Accurately capturing the conformational diversity of proteins is essential for understanding their mechanisms and regulation. However, current structure prediction approaches, including AlphaFold derivatives, are largely limited to modeling one dominant conformation. Improved sampling methods have expanded this to predicting two states. Here, we present AFsample3, an enhanced sampling framework built upon AlphaFold3 that substantially improves the generation and selection of diverse protein conformations. Across a benchmark of 238 non-redundant proteins with multiple experimentally determined states, AFsample3 significantly outperforms AlphaFold3 and its predecessor AFsample2 by improved predictions for 28% (67/239) of targets (ΔTM > 0.1) while degrading only 3% (8/239), and increases the number of high-quality alternate-state models (TM > 0.8) by 54% (from 54 to 83; p < 0.0001). AF sample3 improves alternate-state accuracy for 28% of targets (ΔTM > 0.1) while degrading only 3%, and increases the number of targets with high-quality predictions (TM > 0.8) by over 50% compared to standard AlphaFold3. Ensemble diversity is also markedly enhanced (p < 0.0001), enabling accurate modeling of potential intermediate and or additional states. These results demonstrate that the improved sampling in AFsample3 can capture multiple native-like conformations, representing a significant advance in modeling of protein conformational landscapes. ### Competing Interest Statement The authors have declared no competing interest. Swedish Research Council, 2020-03352, 2024-05619 Swedish e-Science Research Center, https://ror.org/01brr3227 Knut and Alice Wallenberg Foundation, https://ror.org/004hzzk67, WASP

www.biorxiv.org/content/10.6...
Apparently, introducing noise at inference and masking MSA still works well

3 months ago 0 0 0 0
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Large-scale collaborative assessment of binding free energy calculations for drug discovery using OpenFE Accurately measuring compound binding affinities is key to driving the pharmaceutical development process. Rigorous physics-based in silico approaches, particularly alchemical free energy methods, hav...

chemrxiv.org/engage/chemr...

4 months ago 0 0 0 0
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Nice large-scale benchmark of OpenFE on both public (vs FEP+) and blinded private datasets. As expected, the private sets are notably more challenging. OpenFE still looks on a good trajectory toward competitiveness. I’d love to see FEP+ and other RBFE stacks evaluated in a true blind competition.

4 months ago 1 0 1 0

Lol

6 months ago 1 0 0 0

Congrats!

6 months ago 1 0 0 0

In Germany works like that too. Everything travel through mail. Sometimes different Offices ask for the same original (no print) document to be sent…

6 months ago 1 0 0 0
The Virtual Lab of AI agents designs new SARS-CoV-2 nanobodies - Nature Nature - The Virtual Lab of AI agents designs new SARS-CoV-2 nanobodies

www.nature.com/articles/s41...
Run this and go on vacation?

8 months ago 0 0 0 0
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Amazing

9 months ago 1 0 0 0

yeah, probably performing comparably bad is easier than comparably good.

10 months ago 4 0 0 0

Hope your wife is moving with you. My best wishes

10 months ago 0 0 0 0

had same experience. Something wrong with reasoning? In VScode you can install the copilot extension and select among models (Sonnet, GPT or Gemini).

11 months ago 1 0 0 0

scaring. In the future will be coupled to voice chatbot (Sesame made impressive improvements in the field).

1 year ago 0 0 0 0

It's like ending up with a list of ranked docked compounds. Your troubles just started.

1 year ago 1 0 0 0

In other sectors, somebody may have found a working business offer. We just investigated what was on the market for target identification. Most of the companies are struggling to be sustainable. More or less they all end up with genes and corresponding evidences from literature and omics dbs.

1 year ago 1 0 1 0

I work for a CRO and we realized that it is difficult to ask for a lot of money just to generate hypothesis. Most clients prefer to invest on wet-lab validation.

1 year ago 1 0 1 0
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Yeah, may be for the same reason why code is not maintained once the paper is published. No reward anymore. Maybe at some point somebody will train a LLM that takes a whole software and returns a debugged/optimized version. That something deserving a Nobel.

1 year ago 0 0 0 0
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Converging mechanism of UM171 and KBTBD4 neomorphic cancer mutations - Nature We show that gain-of-function cancer mutations in the KBTBD4 E3 ligase promote neodegradation of substrates via a shape-complementarity-based mechanism, which converges with the mechanism of action of...

Cool! A molecular glue mimicking a cancer mutation enables gain-of-function degradation. www.nature.com/articles/s41...

1 year ago 1 0 0 0

Do you think Rosetta energy would correlate with dissociation Freq?

1 year ago 0 0 0 0

First eigenvector is crying

1 year ago 1 0 0 0