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Automated Protein Structure Determination and Dynamics Analysis using NMR

• 0:00:03 Introduction: The speaker, Dan Matu from Bruker BioSpin, introduces a collaborative project with ETH Zurich focusing on an automated cloud platform called "Anarchist" for protein structure determination.

• 0:00:44 Anarchist Platform: This platform automates protein structure solving using NMR data, it streamlines peak picking, resonance assignment, and analysis.

• 0:01:10 Challenges in NMR Structure Determination: Traditional NMR structure determination is labor-intensive, requiring manual resonance assignment and significant expertise.

• 0:01:31 Need to Speed Up: There can be various reasons to get results quickly, some may be competitve projects or time sensitive studies.

• 0:04:24 Artina Framework: Anarchist is built upon the "Artina" framework, which involves AI-assisted peak picking, chemical shift assignment (backbone and side chain), and structure calculation.

• 0:06:22 Real-World Example: A cancer-related protein sample (≈20 kDa) was used to test the platform, with experiments performed on an 800 MHz spectrometer.

• 0:06:49 Automated Assignment Results: The automated assignment achieved approximately 91% accuracy in predicting side-chain assignments.

• 0:07:35 Automated Structure Calculation: The platform successfully generated a 3D structure of the test protein, which aligned well with a (slightly different construct) crystal structure, despite some missing loops.

• 0:08:25 Optimizing Experiment Selection: The researchers are investigating optimal combinations of NMR experiments for different scenarios (molecular size, labeling, etc.).

• 0:09:10 NMR Experiment Selection Determining best experiments given the circumstances.

• 0:10:45 Focus on Dynamics: The true potential lies in facilitating dynamics studies, not just static structure determination.

• 0:11:08 NMR for Dynamics: NMR is well-suited for studying protein dynamics across various timescales.

• 0:11:40 Automated Dynamics Analysis: Using ubiquitin as an example, a minimal set of experiments, combined with AI-based analysis and automated relaxation data processing, yielded dynamics information (order parameters).

• 0:11:51 Automated Data Processing: Full experimental setup, speed-up techniques, and data analysis are completely automated.

• 0:13:32 Accessibility: The automation significantly simplifies the process, making it accessible to a broader range of users, even those without extensive NMR expertise.