Quick Links

Recent Citations

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

Google™ Search

News

December 25, 2025

computer generated image
The RBVI wishes you a safe and happy holiday season! See our 2025 card and the gallery of previous cards back to 1985.

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

Please note that UCSF Chimera is legacy software that is no longer being developed or supported. Users are strongly encouraged to try UCSF ChimeraX, which is under active development.
computer generated image

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

hydrogen bonds

Chemical Knowledge

  • determination of atom types in arbitrary molecules, including non-standard residues
  • ability to add hydrogen atoms
  • high-quality hydrogen bond identification
  • selection of atoms/bonds by element, atom type, functional group, amino acid category
  • interactive bond rotation, distance and angle measurements

(More features...)

Gallery Sample

computer generated image

Wasabi Receptor

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...)


About RBVI | Projects | People | Publications | Resources | Visit Us

Copyright 2018 Regents of the University of California. All rights reserved.