Studies how proteins wiggle with computers and X-rays

New York, NY
Joined January 2022
1/ We're excited to announce that @open_rss is joining the Open Molecular Software Foundation (@openmsf)! We’re building the AI & software infrastructure to let structural bio break free of static coordinate models. OMSF will provide our foundation to grow, collaborate, scale.
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X-ray crystallography can be used to study how protein structures change in response to physical and chemical perturbations. We present a new method for comparative crystallography—comparing among diffraction datasets to detect structural changes. 🧵
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This work was done by the @HekstraLab and Dalton labs—check out their other work for more improvements to the crystallographic software stack and more examples of the cool questions that can be addressed with out-of-the-box diffraction experiments!
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Jack Greisman retweeted
🎉New preprint!🎉 Extremely excited to share CryoBoltz❄️⚡️, led by superstar @rishwanth_raghu! We develop a multiscale guidance recipe to steer structure prediction models (e.g. AlphaFold3 / Boltz-1) towards experimental cryo-EM density maps, including heterogeneous, low-resolution data! CryoBoltz ❄️⚡️bridges protein structure prediction and cryo-EM structure determination. We believe this opens up exciting directions for data-guided structure prediction and atomic modeling of dynamic molecules. Check out @rishwanth_raghu's thread below for more details! So fun to work with the dream team @rishwanth_raghu @axlevy0 and @GordonWetzstein on this paper. Finally, this work was made possible by the openly available Boltz-1 repo and the AlphaFold3 release. Excited to see the continuing developments with Boltz-2 and beyond!
Excited to present CryoBoltz ❄️⚡, a multiscale guidance approach for steering AlphaFold3/Boltz-1 to sample structures that are consistent with experimental cryo-EM density maps. 🧵1/7 arxiv.org/abs/2506.04490 Joint work with @axlevy0 @GordonWetzstein & @ZhongingAlong!
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We’ll be hosting a recruiting talk at Hotel Bel-Ami on March 12 at 18:00 in Salon Maupassant. Join us to learn about our current research, drug discovery, machine learning, and engineering projects as well as open positions. Food and drinks will be served!
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Jack Greisman retweeted
I'm thrilled to announce a new preprint describing collaborative work with @prof_ajay_jain and Ann Cleves Jain, "Deep-Learning Based Docking Methods: Fair Comparisons to Conventional Docking Workflows". arxiv.org/abs/2412.02889
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Sensitive Detection of Structural Differences using a Statistical Framework for Comparative Crystallography biorxiv.org/cgi/content/shor… #biorxiv_biophys
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Jack Greisman retweeted
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The article “Discovery and clinical proof-of-concept of RLY-2608, a first-in-class mutant-selective allosteric PI3Ka inhibitor that decouples anti-tumor activity from hyperinsulinemia,” which we contributed to, has been published in Cancer Discovery. doi.org/10.1158/2159-8290.CD…
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The article “Identification of GDC-1971 (RLY-1971), a SHP2 inhibitor designed for the treatment of solid tumors,” which we contributed to, has been published in the Journal of Medicinal Chemistry. pubs.acs.org/doi/10.1021/acs…
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Our study from @DEShawResearch was published today! A Conserved Local Structural Motif Controls the Kinetics of PTP1B Catalysis | Journal of Chemical Information and Modeling. The following is my first ever tweetorial. Be kind. pubs.acs.org/doi/full/10.102…
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I'm excited to share a pre-print from my PhD research in the @HekstraLab. We developed new xray diffraction experiments and analyses to figure out how an enzyme works, destroying many protein crystals in the process. 🧵 biorxiv.org/content/10.1101/…
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This was just one part of the paper (and not even the part where we zapped crystals with high voltages...)
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For more details, please check out the @HekstraLab tweet summary and the pre-print: xitter.cf/HekstraLab/status/1665…
How do enzyme dynamics relate to the chemical steps of catalysis? Using DHFR as an example, we address this question with a series of crystallographic perturbation experiments. Solvent access is critical; the DHFR active site has two distinct substates. How does that work? 👇🧵
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