2024Huang MiLoPYP

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Revision as of 10:54, 8 October 2024 by WikiSysop (talk | contribs) (Created page with "== Citation == Q. Huang, Y. Zhou, and A. Bartesaghi, “MiLoPYP: self-supervised molecular pattern mining and particle localization in situ,” Nature Methods, pp. 1–10, 2024. == Abstract == Cryo-electron tomography allows the routine visualization of cellular landscapes in three dimensions at nanometer-range resolutions. When combined with single-particle tomography, it is possible to obtain near-atomic resolution structures of frequently occurring macromolecules w...")
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Citation

Q. Huang, Y. Zhou, and A. Bartesaghi, “MiLoPYP: self-supervised molecular pattern mining and particle localization in situ,” Nature Methods, pp. 1–10, 2024.

Abstract

Cryo-electron tomography allows the routine visualization of cellular landscapes in three dimensions at nanometer-range resolutions. When combined with single-particle tomography, it is possible to obtain near-atomic resolution structures of frequently occurring macromolecules within their native environment. Two outstanding challenges associated with cryo-electron tomography/single-particle tomography are the automatic identification and localization of proteins, tasks that are hindered by the molecular crowding inside cells, imaging distortions characteristic of cryo-electron tomography tomograms and the sheer size of tomographic datasets. Current methods suffer from low accuracy, demand extensive and time-consuming manual labeling or are limited to the detection of specific types of proteins. Here, we present MiLoPYP, a two-step dataset-specific contrastive learning-based framework that enables fast molecular pattern mining followed by accurate protein localization. MiLoPYP’s ability to effectively detect and localize a wide range of targets including globular and tubular complexes as well as large membrane proteins, will contribute to streamline and broaden the applicability of high-resolution workflows for in situ structure determination.

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https://www.nature.com/articles/s41592-024-02403-6

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