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.
1q4tB - 3r3fA of substitution A-T at 77
*1q4tB: red cartoon and yellow stick
*3r3fA: green cartoon and blue stick
Protein structure alignment:
Protein sequence alignment:
Protein sequence alignment: