Visualize molecule structure use
JSmol
Based on http://chemapps.stolaf.edu/jmol/jsmol/jsmol.htm
Molecular Viewer
Jmol._Canvas3D (Jmol/GLmol) "jmolApplet0"
[x]
Examples:
small (1crn)
Fe/S (1blu)
b-DNA (1bna)
transcription (1d66)