Mechanism of target site selection by type V-K CRISPR-associated transposases. George JT, Acree C et al. Science. 2023 Nov 17;382(6672):eadj8543.
A practical guide to machine-learning scoring for structure-based virtual screening. Tran-Nguyen VK, Junaid M et al. Nat Protoc. 2023 Nov;18(11):3460-3511.
Structure and activation mechanism of the rice Salt Overly Sensitive 1 (SOS1) Na+/H+ antiporter. Zhang XY, Tang LH et al. Nat Plants. 2023 Nov;9(11):1924-1936.
Molecular orbital and topological electron density study of n → π* interactions: amides and thioamides cases. Briceño-Vargas FM, Quesadas-Rojas M et al. RSC Adv. 2023 Oct 26;13(45):31321-31329.
Structures illustrate step-by-step mitochondrial transcription initiation. Goovaerts Q, Shen J et al. Nature. 2023 Oct 26:622(7984):872–879.Previously featured citations...
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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
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.Previous news...
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.
The PDB/UniProt Info tool retrieves sequence and structure annotations for Protein Data Bank (PDB) entries using a Web service provided by the RCSB PDB. Sequences are displayed in Multalign Viewer, and feature annotations from UniProt are mapped onto the sequences as regions or colored boxes. In the region browser (figure at right):
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...)
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