Videos on Proteins Structures
Dr. David Johnson, Professor Biomedical Sciences, East Tennessee State U.
Provides instruction on how to download Chimera molecular modeling software free from U. San Francisco and how to use it to study human hemoglobin structure.
Discovery Studio Visualizer 3.5 free from Accelrys.com
Describes how to perform a multiple sequence alignment of protein amino acid sequences.
PDB files contain the atomic coordinates for protein, RNA and DNA structures that allow us to see the molecules when opened with molecular viewers, such as Accelrys' Discovery Studio the Swiss PDB Viewer and others.