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.
1zkaA - 1zk9A of substitution S-Y at 300
*1zkaA: red cartoon and yellow stick
*1zk9A: green cartoon and blue stick
Protein structure alignment:
Protein sequence alignment:
Protein sequence alignment: