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Polymerase trapping as the mechanism of H5 highly pathogenic avian influenza virus genesis. Funk M, Spronken MI et al. Science. 2026 Mar 12;391(6790):eadr6632.
Identification of an allosteric site on the E3 ligase adapter cereblon. Dippon VN, Rizvi Z et al. Nature. 2026 Mar 12;651(8105):482-490.
Structures of Ostα/β reveal a unique fold and bile acid transport mechanism. Yang X, Cui N et al. Nature. 2026 Mar 5;651(8104):260–267.
Structure and mechanism of the human bile acid transporter OSTα-OSTβ. Wang K, Fan J et al. Nature. 2026 Mar 5;651(8104):251–259
SPARC: a structural pathogenicity algorithm for risk classification of hERG variants. Chatelain FC, de Oliveira BR et al. Europace. 2026 Feb 3;28(2):euaf327.
Previously featured citations...Chimera Search
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December 25, 2025
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September 22, 2025
Mac users may wish to defer upgrading to MacOS Tahoe. Currently on that OS the Chimera graphics window is shifted so that it covers the command and status lines.
March 6, 2025
Chimera production release 1.19 is now available, fixing the ability to fetch structures from the PDB (1.19 release notes).
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UCSF Chimera is a program for the interactive visualization and analysis of molecular structures and related data, including density maps, trajectories, and sequence alignments. It is available free of charge for noncommercial use. Commercial users, please see Chimera commercial licensing.
We encourage Chimera users to try ChimeraX for much better performance with large structures, as well as other major advantages and completely new features in addition to nearly all the capabilities of Chimera (details...).
Chimera is no longer under active development. Chimera development was supported by a grant from the National Institutes of Health (P41-GM103311) that ended in 2018.
Feature Highlight
The ConSurf Server provides results as Chimera Web data; after browser configuration, a single click displays the color-coded query structure and multiple sequence alignment with phylogenetic tree and custom headers in a locally installed copy of Chimera (details).
Special thanks to Elana Erez and the Ben-Tal and Pupko groups at Tel Aviv University, and to Fabian Glaser at the Technion.
(More features...)
Gallery Sample
The image shows the structure of the human TRPA1 ion channel (wasabi receptor) determined by electron cryo-microscopy, Protein Data Bank entry 3j9p. The four subunits of the tetramer are shown as ribbons in different colors over a dark-to-light gradient background. (More samples...)
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