Carboxypeptidase A

In this tutorial you will be looking at the enzyme Carboxypeptidase A using the Chemscape Chime plug-in. This plug-in is very similar in functionality to Rasmol - an interactive Molecular Visualisation program. Versions of the plug-in are available for Unix, Macintosh, and Dos platforms, although the Unix version is no longer being upgraded.

To use these tutorials, you need to use a Netscape browser, v3.01 or above, configured to use the Chime Plug-in for handling files with the mime types chemical/x-pdb and application/x-spt (this should be the default configuration after installing the Chime Plug-in, but you may need to change it if you have previously used the Rasmol application for these mime types - see the help page for more information).

We have designed the Chime version of these tutorials so that students will also feel comfortable using RasMol afterwards if they need to.

In order to use the Rasmol interactive program effectively, you must type in many of the commands at the Rasmol prompt in the command window:

We have preserved this interactivity by creating a 'command line' text box in which you can send commands to the Chime Plug-in. Many thanks go to Eric Martz (creator of the RasMol/Chime website) for providing useful JavaScript examples which showed us how to do this.

These tutorials contain interactive questions which employ JavaScript to check the answers. If you are experiencing problems, make sure that your browser has JavaScript enabled (go to Edit -> Preferences -> Advanced in the Netscape menu).

We hope you enjoy these interactive tutorials!

Tutorial Contents