Jmol view
The 3D View page visualizes the PDB structures using Jmol (an open-source Java viewer for chemical structures in 3D, http://www.jmol.org/) and provides options to render structures in different styles and colors.
4opuA - 4opcA of substitution G-H at 91
*4opuA: red cartoon and yellow stick
*4opcA: green cartoon and blue stick
Protein structure alignment:
Protein sequence alignment:
Protein sequence alignment: