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Recent Citations

Structural basis of pan-Ebolavirus neutralization by an antibody targeting the glycoprotein fusion loop. Murin CD, Bruhn JF et al. Cell Rep. 2018 Sep 4;24(10):2723-2732.e4.

Electron-microscopy-based epitope mapping defines specificities of polyclonal antibodies elicited during HIV-1 BG505 envelope trimer immunization. Bianchi M, Turner HL et al. Immunity. 2018 Aug 21;49(2):288-300.e8.

Structure-based design of a monosaccharide ligand targeting galectin-8. Bohari MH, Yu X et al. ChemMedChem. 2018 Aug 20;13(16):1664-1672.

Single-particle cryo-EM structure of a voltage-activated potassium channel in lipid nanodiscs. Matthies D, Bae C et al. eLife. 2018 Aug 15;7. pii: e37558.

Structure and analysis of R1 and R2 pyocin receptor-binding fibers. Buth SA, Shneider MM et al. Viruses. 2018 Aug 14;10(8). pii: E427.

(Previously featured citations...)

Chimera Search

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July 3, 2018

Chimera production release 1.13 is now available. See the release notes for what's new.

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.

(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, 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 (P41-GM103311).

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

Feature Highlight

RR Distance Maps 2gbp and 2fw0

Distance Maps and Contact Maps

RR Distance Maps creates a distance map, a generalization of a protein contact map in which residue-residue distances are shown with color gradations. The map can show the Cα-Cα distances within an individual protein chain or the averages and standard deviations for multiple related chains (as in the figure). A simple binary coloring like a standard contact map can also be obtained.

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Gallery Sample

Sliced Potassium Channel

Potassium channel (Protein Data Bank entry 1bl8) on a dark slate blue background with potassium ions shown in firebrick. The channel is comprised of four chains. Each chain has been rainbow-colored from blue at the N-terminus to red at the C-terminus, but only the surface of the channel is shown. The surface has been sliced with a per-model clipping plane. The surface cap color is plum except with opacity set to 0.8. The shininess and brightness have been set to 128 and 8, respectively, and the lights on the scene have been moved from their default positions. The subdivision quality (related to the smoothness of the spherical ions) is 5.0, and the molecular surface was computed with probe radius and vertex density set to 1.0 and 6.0, respectively. (More samples...)