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The RAD52 double-ring remodels replication forks restricting fork reversal. Honda M, Razzaghi M et al. Nature. 2025 May 8;641(8062):512–519.

Snapshots of acyl carrier protein shuttling in human fatty acid synthase. Schultz K, Costa-Pinheiro P et al. Nature. 2025 May 8;641(8062):520–528.

Structural dynamics of human fatty acid synthase in the condensing cycle. Choi W, Li C et al. Nature. 2025 May 8;641(8062):529–536.

Structural dynamics of DNA unwinding by a replicative helicase. Shahid T, Danazumi AU et al. Nature. 2025 May 1;641(8061):240–249.

Cryo-EM reveals mechanisms of natural RNA multivalency. Wang L, Xie J et al. Science. 2025 May 1;388(6746):545-550.

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News

May 7, 2025

The ChimeraX 1.10 release candidate is available – please try it and report any issues. See the change log for what's new.

March 19, 2025

Wiley most-cited-paper medallion
UCSF ChimeraX: Tools for structure building and analysis is one of the 10 most cited papers published in Protein Science in 2023!

March 1, 2025

Bluesky logo Follow UCSF ChimeraX on BlueSky! @chimerax.ucsf.edu

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UCSF ChimeraX

UCSF ChimeraX (or simply ChimeraX) is the next-generation molecular visualization program from the Resource for Biocomputing, Visualization, and Informatics (RBVI), following UCSF Chimera. ChimeraX can be downloaded free of charge for academic, government, nonprofit, and personal use. Commercial users, please see ChimeraX commercial licensing.

ChimeraX is developed with support from National Institutes of Health R01-GM129325.

Bluesky logo ChimeraX on Bluesky: @chimerax.ucsf.edu

Feature Highlight

Embed the 3D Scene in a Web Page

The 3D contents of the ChimeraX graphics window can be embedded in a web page by:

  1. saving the scene as a GLTF (*.glb) file
  2. referencing the GLTF file in the HTML source of the web page (details...)
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Example Image

CaM-CaMKI peptide

Calmodulin and Target Peptide

Calmodulin (CaM) acts as a calcium sensor. When its four Ca++ sites are fully occupied, it binds and modulates the activity of various downstream proteins, including CaM-dependent protein kinase I (CaMKI). Here, a complex between CaM and its target peptide from CaMKI (PDB 1mxe) is shown with cartoons, a transparent molecular surface, silhouette outlines, and light soft ambient occlusion. (If you prefer a less smudgy/rustic appearance, try using light gentle instead.) For image setup other than positioning, see the command file cam.cxc.

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