Difference between revisions of "UCSF Chimera"

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(Created page with "<div id="BIO"> <div class="b1"> UCSF Chimera </div>     [[Image:Mbp1_Model_complex.jpg|frame|none|'''A complex between a model of Mbp1 and a segment of DNA'''<br>...")
 
 
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[[Image:Mbp1_Model_complex.jpg|frame|none|'''A complex between a model of Mbp1 and a segment of DNA'''<br>
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[[Image:1PUE_demo_01_mono(POV).png|frame|none|'''A complex between a transcription factor and its cognate DNA binding site'''<br>
The model was visualized and positioned in VMD - nucleotides were displayed as "licorice" sticks and the protein was covered by its solvent-accessible surface, calculated with a probe radius of 1.4 &Aring;. Coloring is ramped according to position (i.e. an atom's distance from the complex's centre of mass). The scene was rendered with the tachyon raytracer using ambient occlusion lighting and 8-fold antialiasing.  ]]
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The coordinates of [http://pdb.org/pdb/explore/explore.do?structureId=1PUE '''1PUE'''] were downloaded from the PDB; separate models for protein and DNA were defined in Chimera and a solvent-accessible surface was calculated for the protein component of the complex. Rainbow coloring by sequence number was applied to the residues. The protein surface is transparent and the protein is displayed in "pipe-and-loops" mode. The scene was exported from Chimera to the POVray raytracer and rendered with standard parameters.  ]]
  
  
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==Installing Chimera==
 
==Installing Chimera==
  
{{task|
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<section begin=Installation />
#Access the [http://www.cgl.ucsf.edu/chimera/ Chimera homepage] and navigate to the download section.
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{{task|1=
#Follow the link to the newest version and review the features.
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# Access the [http://www.cgl.ucsf.edu/chimera/ Chimera homepage] and navigate to the '''Download''' section.
#Access the Download page and click on the link appropriate for your platform. Follow the instructions to install VMD.
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# Find the the newest version for your platform in the table and click on the file to download it.
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# Follow the instructions to install Chimera.
 
}}
 
}}
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<section end=Installation />
  
 
==Chimera tutorials==
 
==Chimera tutorials==
  
The '''VMD''' site has a [http://www.ks.uiuc.edu/Research/vmd/current/docs.html#tutorials tutorial section] with many excellent contributions.
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The '''Chimera''' User Guide site has a [https://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/frametut.html '''set of associated tutorials'''] and there are more tutorials linked from [https://www.rbvi.ucsf.edu/chimera/tutorials.html '''here'''].
 
 
The following links take you directly to the on-line tutorials at UIUC.
 
 
 
*[http://www.ks.uiuc.edu/Training/Tutorials/vmd/tutorial-html/node1.html '''Part 1 (Introduction)''']
 
 
 
*[http://www.ks.uiuc.edu/Training/Tutorials/vmd/tutorial-html/node2.html '''Part 2 (Working with a single molecule)''']
 
 
 
  
  
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==Links and resources==
 
==Links and resources==
*[http://www.ks.uiuc.edu/Research/vmd/ VMD homepage]
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*[https://www.cgl.ucsf.edu/chimera/ UCSF Chimera homepage]
*[http://www.ks.uiuc.edu/Research/vmd/allversions/vmd_faq.html UIUC VMD FAQ]
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*[https://www.cgl.ucsf.edu/chimera/current/docs/UsersGuide/framecontrib.html Chimera Tools Index]
*[http://www.ks.uiuc.edu/Research/vmd/mailing_list/vmd-l/ VMD mailing list archive (large file!)]
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*[http://plato.cgl.ucsf.edu/pipermail/chimera-users/ Chimera mailing list archive]
  
  

Latest revision as of 22:58, 18 October 2015

UCSF Chimera

   


A complex between a transcription factor and its cognate DNA binding site
The coordinates of 1PUE were downloaded from the PDB; separate models for protein and DNA were defined in Chimera and a solvent-accessible surface was calculated for the protein component of the complex. Rainbow coloring by sequence number was applied to the residues. The protein surface is transparent and the protein is displayed in "pipe-and-loops" mode. The scene was exported from Chimera to the POVray raytracer and rendered with standard parameters.


UCSF Chimera is a powerful, well engineered, molecular graphics package with a large number of functions that is under ongoing development and maintenance. It is one of a number of freely available tools to visualize and manipulate three-dimensional molecular datasets, but it stands out due to its rich features, the versatility of its use and the ease with which common tasks can be accomplished and the fact that it is being actively developed and maintained. You should learn to work with it in this course, but you should also be aware that there are alternatives, each with different strengths and weaknesses. Some of the more widely used free systems are:

A comprehensive list of molecular graphics systems can be found here.


   

Installing Chimera

Task:

  1. Access the Chimera homepage and navigate to the Download section.
  2. Find the the newest version for your platform in the table and click on the file to download it.
  3. Follow the instructions to install Chimera.


Chimera tutorials

The Chimera User Guide site has a set of associated tutorials and there are more tutorials linked from here.


Links and resources