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Recent Citations

A single-stranded architecture for cotranscriptional folding of RNA nanostructures. Geary C, Rothemund PW, Andersen ES. Science. 2014 Aug 15;345(6198):799-804.

Activating mutations in RRAS underlie a phenotype within the RASopathy spectrum and contribute to leukaemogenesis. Flex E, Jaiswal M et al. Hum Mol Genet. 2014 Aug 15;23(16):4315-27.

Structure of β-galactosidase at 3.2-Å resolution obtained by cryo-electron microscopy. Bartesaghi A, Matthies D et al. Proc Natl Acad Sci USA. 2014 Aug 12;111(32):11709-14.

Enabling membrane protein structure and dynamics with X-ray free electron lasers. Feld GK, Frank M. Curr Opin Struct Biol. 2014 Aug;27C:69-78.

Blind prediction performance of RosettaAntibody 3.0: Grafting, relaxation, kinematic loop modeling, and full CDR optimization. Weitzner BD, Kuroda D et al. Proteins. 2014 Aug;82(8):1611-23.

(Previously featured citations...)

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News

August 15, 2014

We are delighted to announce the publication of a new book, Computational and Visualization Techniques for Structural Bioinformatics Using Chimera, written by Forbes J. Burkowski (University of Waterloo).

May 13, 2014

Chimera production release 1.9 is now available. See the release notes for new features since the 1.8 release series.

April 23, 2014

A production release candidate (version 1.9) is now available; please try it and report any problems. See the release notes for changes relative to the previous release.

(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

1ovh pocket list 1ovh pockets

CASTp Pocket Data

Structures and their pocket measurements can be fetched directly from the Computed Atlas of Surface Topography of proteins (CASTp) database or read from local files previously returned by the CASTp server. In Chimera, the pockets are shown in a pocket list. Choosing rows in the list performs actions such as zooming in on pockets and selecting the surrounding atoms.

The figure shows the four largest pockets by volume identified by CASTp for PDB entry 1ovh (a cavity mutant of T4 lysozyme), shown in yellow, orange, pink, and magenta in order of decreasing volume. The largest is lysozyme's active site, with two openings. The second largest is the engineered cavity. Mutated positions are shown in red. Green balls are Cl ions.

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Gallery Sample

Annotated Green Fluorescent Protein

BILD format was used in Chimera to annotate the barrel structure of green fluorescent protein with its centroid, major axis (red arrow), and an enclosing cylinder (shown with green hoops). The BILD file green.bild was generated with the python program green.py using the coordinates in green.pdb. Gallery entry courtesy of Mike Ess, Yeast Resource Center, University of Washington. (More samples...)