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Recent Citations

RRDistMaps: a UCSF Chimera tool for viewing and comparing protein distance maps. Chen JE, Huang CC, Ferrin TE. Bioinformatics. 2015 May 1;31(9):1484-6.

Cryo-EM structure of SNAP-SNARE assembly in 20S particle. Zhou Q, Huang X et al. Cell Res. 2015 May;25(5):551-60.

Atomic structures of a bactericidal contractile nanotube in its pre- and postcontraction states. Ge P, Scholl D et al. Nat Struct Mol Biol. 2015 May;22(5):377-82.

Structures of the CRISPR-Cmr complex reveal mode of RNA target positioning. Taylor DW, Zhu Y et al. Science. 2015 May 1;348(6234):581-5.

Domain atrophy creates rare cases of functional partial protein domains. Prakash A, Bateman A. Genome Biol. 2015 Apr 30;16(1):88.

(Previously featured citations...)

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News

January 9, 2015

Chimera production release 1.10.1 is now available. 64-bit builds are recommended for all capable platforms, and the 1.10 series will be the last to support OS X 10.6 and 10.7. See the release notes for details.

November 5, 2014

Chimera production release 1.10 is now available. 64-bit builds are recommended for all capable platforms, and v1.10 will be the last to support OS X 10.6 and 10.7. See the release notes for what's new.

October 23, 2014

A production release candidate (v1.10) is available; please try it and report any problems. 64-bit builds are now recommended for all capable platforms, and v1.10 will be the last to support OS X 10.6 and 10.7. See the release notes for what's new.

(Previous news...)

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, non-profit, and personal use. Chimera is developed by the Resource for Biocomputing, Visualization, and Informatics, funded by the National Institutes of Health (NIGMS P41-GM103311).

Feature Highlight

Thermal Ellipsoids

Anisotropic B-factors can be shown as ellipsoids, with ellipsoid axes and radii representing the eigenvectors and eigenvalues of the atomic mean-square displacement matrix. Anisotropic B-factors are read from the input coordinate file (for example, from ANISOU records in a PDB file) and can be displayed with the tool Thermal Ellipsoids or the command aniso. The figure shows ellipsoids scaled to enclose 50% probability for the heme and nearby atoms from PDB entry 1a6m.

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Gallery Sample

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...)