Editing Cheshift (section)

== Description ==
[[Image:cheshift.png|thumb|Result of a CheShift analysis.<br> 
Colors indicate the difference between predicted and observed <sup>13</sup>C<sup>α</sup> and/or <sup>13</sup>C<sup>β</sup>chemical shifts values averaged over all uploaded conformers.
Green, yellow and red colors represent small, medium and large differences, respectively. White is used if either the prediction failed or the observed value is missing.<br>
Blue is used to highlight residues for which the agreement between observed and predicted <sup>13</sup>C<sup>α</sup> and <sup>13</sup>C<sup>β</sup>chemical shifts can be improved, i.e., if the (χ<sup>1</sup> /χ<sup>2</sup> ) side-chain  | 440px]]

CheShift (pronounced /tʃeʃɪft/) is a software for prediction of 13Cα and 13Cβ chemical shifts and validation of proteins structures. It is based on the idea that the differences between observed and predicted <sup>13</sup>C<sup>α</sup> and <sup>13</sup>C<sup>β</sup> chemical shifts can be used as a sensitive probe with which to detect possible local flaws in protein structures. A [http://www.cheshift.com Web Server] is also available.

This plugin provides a way to use PyMOL to validate a protein model using observed chemical shifts.

=== Version ===
The current version of this plugin is 3.6