Interactive molecule models are generated by the Javascript applet JSmol (url on Links page). With some browsers, one has to click once into the applet window in order to activate interaction. You can rotate (left mouse button), translate (double click and keep pressed shift - left) and zoom (shift - left) molecular models. After using the mouse within the applet's region, it may be necessary to just click once somewhere outside that region In order to restore normal mouse operation.

Links within the accompanying text often invoke animations when the mouse touches them. Give those actions the time to finish, otherwise results might turn somewhat unexpected. In case of emergency, you can always reload the page and start over.

The applet uses color codes to label atoms: Proton (H) white, Carbon (C) grey, Oxygen (O) red, Nitrogen (N) blue, and Sulphur (S) yellow. Bonds, including double bonds, connecting those atoms are mostly depicted by just one single line. Many coordinate files do not contain positions of protons. This may result in amine groups represented by just N, and hydrogen bonds virtually connecting oxygens to nitrogens (such as exemplified by turns on secondary structure pages).

In any case: Jmol is a fine program, please play around with it and have fun!