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Recent Citations

Structure of the yeast spliceosomal postcatalytic P complex. Liu S, Li X et al. Science. 2017 Dec 8;358(6368):1278-1283.

Structural insight into the rearrangement of the switch I region in GTP-bound G12A K-Ras. Xu S, Long BN et al. Acta Crystallogr D Struct Biol. 2017 Dec 1;73(Pt 12):970-984.

3.9 Å structure of the yeast Mec1-Ddc2 complex, a homolog of human ATR-ATRIP. Wang X, Ran T et al. Science. 2017 Dec 1;358(6367):1206-1209.

Structural basis for the initiation of eukaryotic transcription-coupled DNA repair. Xu J, Lahiri I et al. Nature. 2017 Nov 30;551(7682):653-657.

Primer synthesis by a eukaryotic-like archaeal primase is independent of its Fe-S cluster. Holzer S, Yan J et al. Nat Commun. 2017 Nov 23;8(1):1718.

(Previously featured citations...)

Chimera Search

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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.

March 13, 2017

For a nice 3D-printing protocol that uses Chimera, see 3D Printing of Biomolecular Models for Research and Pedagogy by Da Veiga Beltrame, Tyrwhitt-Drake, et al. today in JoVE!

(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), funded 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

EM map morph

Morphing Density Maps

Related density maps can be compared by morphing from one to the other. Several intermediate maps are generated by interpolating between the starting and ending maps. The morph can be viewed interactively and recorded as a movie. The contour level can be adjusted automatically to keep the enclosed volume constant throughout the morph, and other aspects of map display can be adjusted with Volume Viewer.

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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...)