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Recent Citations

Structures of jacalin-related lectin PPL3 regulating pearl shell biomineralization. Nakae S, Shionyu M et al. Proteins. 2018 Jun;86(6):644-653.

Routine single particle CryoEM sample and grid characterization by tomography. Noble AJ, Dandey VP et al. eLife. 2018 May 29;7. pii: e34257

Structure of telomerase with telomeric DNA. Jiang J, Wang Y et al. Cell. 2018 May 17;173(5):1179-1190.e13.

PyChimera: use UCSF Chimera modules in any Python 2.7 project. Rodríguez-Guerra Pedregal J, Maréchal JD. Bioinformatics. 2018 May 15;34(10):1784-1785.

Structural basis for the recognition of complex-type N-glycans by Endoglycosidase S. Trastoy B, Klontz E et al. Nat Commun. 2018 May 14;9(1):1874.

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Chimera Search

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June 2, 2018

A production release candidate (version 1.13) is available; please try it and report any problems. See the release notes for what's new.

October 24, 2017

Chimera production release 1.12 is now available (64-bit builds for Windows, Mac, and Linux). See the release notes for details.

September 12, 2017

A production release candidate (version 1.12) is available; please try it and report any problems. See the release notes for what's new.

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Upcoming Events

UCSF Chimera is a highly extensible program for interactive visualization and analysis of molecular structures and related data, including density maps, supramolecular assemblies, sequence alignments, docking results, trajectories, and conformational ensembles. High-quality images and animations can be generated. Chimera includes complete documentation and several tutorials, and can be downloaded free of charge for academic, government, nonprofit, and personal use. Chimera is developed by the Resource for Biocomputing, Visualization, and Informatics (RBVI), supported in part by the National Institutes of Health (NIGMS P41-GM103311).

UCSF ChimeraX (or simply ChimeraX) is the next-generation molecular visualization program from the RBVI, following UCSF Chimera.

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

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Gallery Sample

Orexin Receptor Complex

The image shows the structure of the human OX2 orexin receptor bound to the insomnia drug suvorexant, Protein Data Bank entry 4s0v. The drug is shown as spheres colored by element, and the receptor as ribbons with secondary structure elements rainbow-colored from blue at the N-terminus to red at the C-terminus. (More samples...)