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A high-throughput selection system for fast-acting covalent protein drugs. Fan Q, Mei J et al. Science. 2026 May 28;392(6801):eadv3081.
Architecture of clathrin-independent AP3:ARF1-coated carriers. Kaufman JGG, Tagiltsev G et al. Sci Adv. 2026 May 15;12(20):eaed1529.
Open and closed forms of assembled henipavirus nucleoprotein suggest structural basis of genome access. Jayachandran RB, Quignon E, Renner M. Sci Adv. 2026 May 15;12(20):eaed8300.
The molecular basis of force selectivity by PIEZO2. Mulhall EM, Yarishkin O et al. Nature. 2026 May 7;653(8113):297–305.
Human DHX29 detects nonoptimal codon usage to regulate mRNA stability. Hia F, Wu Y et al. Science. 2026 May 7;392(6798):eadw0288.
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).
Previous news...Upcoming Events
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
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A structure can be colored to show attributes such as residue conservation. Opening a sequence alignment in Chimera shows it in Multalign Viewer and automatically associates sequences with structures as appropriate. Residues of alignment-associated structures are assigned conservation values; available measures include entropy, variability, and sum-of-pairs. The figure was created using the PFAM Carb_anhydrase seed alignment PF00194_seed.slx (see image) and includes 2D labels and a color key. See also: mapping sequence conservation
(More features...)
Gallery Sample
Peroxiredoxins are enzymes that help cells cope with stressors such as high levels of reactive oxygen species. The image shows a decameric peroxiredoxin from human red blood cells (Protein Data Bank entry 1qmv), styled as a holiday wreath.
See also the RBVI holiday card gallery.
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