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Recent Citations
Promiscuous G-protein activation by the calcium-sensing receptor. Zuo H, Park J et al. Nature. 2024 May 9;629(8011):481–488.
Structural insights into vesicular monoamine storage and drug interactions. Ye J, Chen H et al. Nature. 2024 May 2;629(8010):235–243.
Ciliopathy patient variants reveal organelle-specific functions for TUBB4B in axonemal microtubules. Dodd DO, Mechaussier S et al. Science. 2024 Apr 26;384(6694):eadf5489.
Necroptosis blockade prevents lung injury in severe influenza. Gautam A, Boyd DF et al. Nature. 2024 Apr 25;628(8009):835–843.
Cryogenic electron tomography reveals novel structures in the apical complex of Plasmodium falciparum. Sun SY, Segev-Zarko L-a et al. mBio. 2024 Apr 10;15(4):e0286423.
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October 30-31, 2023
Planned downtime: The Chimera and ChimeraX websites and associated web services will be unavailable Oct 30 8am PDT – Oct 31 11:59pm PDT.
April 19, 2023
Chimera production release 1.17.1 is now available, fixing an issue with 1.17 for Windows and Linux. See the release notes for details.
April 13, 2023
Chimera production release 1.17 is now available. Updating is required to keep using the tools that run Blast Protein, Modeller, and multiple sequence alignment with Clustal Omega or MUSCLE, as these will soon stop working in older versions. See the release notes for details.
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UCSF Chimera is a program for the interactive visualization and analysis of molecular structures and related data, including density maps, trajectories, and sequence alignments. It is available free of charge for noncommercial use. Commercial users, please see Chimera commercial licensing.
We encourage Chimera users to try ChimeraX for much better performance with large structures, as well as other major advantages and completely new features in addition to nearly all the capabilities of Chimera (details...).
Chimera is no longer under active development. Chimera development was supported by a grant from the National Institutes of Health (P41-GM103311) that ended in 2018.
Feature Highlight
One use of Multidomain Assembler is to set up comparative modeling and concatenation of existing structures to generate a full-length model of a multidomain protein. However, even without model-building, the byproduct is also useful: a visual summary of the structures available for a query sequence, optionally filtered by criteria such as BLAST score and % identity, laid out horizontally in approximate N→C order relative to the query. Overlapping hits are stacked vertically, and segments without structural coverage are indicated with spheres. By default, the multiple sequence alignment of the hits to the query is also displayed.
The figure shows the results of command:
mda p08648 ~/Desktop/MDA limit 4 percent 50
with sequence mismatches in red and molecules other than the hit
chains in blue. Text and pointers have been added with
2D
Labels.
Multidomain Assembler is described in a paper.
(More features...)Gallery Sample
Peroxiredoxins are enzymes that help cells cope with stressors such as high levels of reactive oxygen species. The image shows a decameric peroxiredoxin from human red blood cells (Protein Data Bank entry 1qmv), styled as a holiday wreath.
See also the RBVI holiday card gallery.
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