This tutorial was initially developed by Dr Steven Bottomley and used Chime as the molecular visualisation program to view protein structure. Chime was a very useful program, based on an a well known program called RasMol, that allowed you to view molecular structure from within a web browser page. This is unlike RasMol, and most other molecular structure visualisation programs, which operated as a separate application outside of the web browser window. Unfortunately, Chime has not kept pace with the advances in web browsers and doesn't run within most recent web browsers. This meant that the tutorial could not be used effectively by students. Consequently, we really had to modify the tutorial and find a more appropriate molecular visualisation program. This is where David Chandler came to help us (not exactly a 'knight in shining armour', but pretty darn close). He developed the new molecular visualisation program based on recent Java routines called Jmol. The result is what you are using now to perform the tutorial. Eleanor Morgan (Nell) has always had an active, and enthusiastic, association with this tutorial and converted Steve's initial (and rough) hypertext into a WebCT based tutorial. Nell has also contributed some content to this new, modified, tutorial.