Protein Data Bank
The single worldwide repository for the processing and distribution of 3-D biological
macromolecular structure data.

RasMol is a free program which displays molecular structure.
Versions are available for most platforms : Unix/Linux, Windows and MacIntosh.

Database of Macromolecular Movements
This database describes the motions that occur in proteins and other macromolecules, particularly using movies. Associated with it are a variety of free software tools and servers for structural analysis.

Protein Structural Change DataBase
The purpose of this database is to represent the relationship between protein structural change and ligand binding. We classified protein structural changes into 7 classes blow, in terms of the ligand binding sites and the location where the dominant motion occurs.