You can explore any 3D macromolecular structure model (PDB file) in: Jmol Protein Explorer   jmol.proteinExplorer.org (Bob Hanson, St. Olaf College) Saves files directly to your local drive: PDB files, PNG and JPG images, Jmol states, JVXL isosurfaces Uses the Jmol signed Java applet instead of the Chime plugin Requires Java (standard with most operating systems and browsers) Works on most modern browsers (not Opera, though) Email your structure to yourself or a colleague! Version 0.2 in development FirstGlance in Jmol Assumes that you are familiar with the principles of protein structure, and with finding PDB codes. Nothing needs to be installed (except java). Works in popular browsers in Windows, OSX, and linux. Relatively simple. Most molecular views are pre-determined. Supports user-defined views of non-covalent contacts. Protein Explorer in Chime Original Chime version -- by Eric Martz, University of Massachusetts, Amherst. Fully developed, with lots and lots of examples, tutorials, and help. Requires installation of the free MDL Chime browser plugin. Works in a limited set of browsers. Older versions of Protein Explorer Other free molecular visualization software packages are listed at MolVisIndex.Org. Educational molecular visualization resources for teachers: MolviZ.Org For high school (secondary school) biology teachers: BioMolecular Explorer 3D