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Recent Citations

Ratchet-like polypeptide translocation mechanism of the AAA+ disaggregase Hsp104. Gates SN, Yokom AL et al. Science. 2017 Jul 21;357(6348):273-279.

Using molecular visualization to explore protein structure and function and enhance student facility with computational tools. Terrell CR, Listenberger LL. Biochem Mol Biol Educ. 2017 Jul 8;45(4):318-328.

Recognition of EGF-like domains by the Notch-modifying O-fucosyltransferase POFUT1. Li Z, Han K et al. Nat Chem Biol. 2017 Jul;13(7):757-763.

Dual host specificity of phage SP6 is facilitated by tailspike rotation. Tu J, Park T et al. Virology. 2017 Jul;507:206-215.

Improved metrics for comparing structures of macromolecular assemblies determined by 3D electron-microscopy. Joseph AP, Lagerstedt I et al. J Struct Biol. 2017 Jul;199(1):12-26.

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Chimera Search

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December 2, 2016

Chimera production release 1.11.2 is now available. This version has been updated to work with changes in NCBI Blast and to avoid crashes on Mac Sierra (see the release notes for details).

September 24, 2016

Production release candidate (version 1.11.2) is available, superseding 1.11.1. The new version has been updated to work with changes in NCBI Blast (see release notes). Please try it and report any problems.

August 27, 2016

A production release candidate (version 1.11.1) is now available. Please try it and report any problems. See the release notes for what's been fixed since 1.11. The 1.11 release series will be the last to support 32-bit builds.

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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), 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

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...)