Besides comprehensive cover of structural information gained by electron microscopy, electron cryo-tomography, X-ray crystallography, and nuclear magnetic resonance, this book provides detailed descriptions of mechanistic experiments by single-molecule nanometry. The reports include in vitro studies of the motility of reconstituted complexes and in vivo studies of organisms expressing mutant dyneins. The recent technical improvements described, which have played an important part in recent advances, include the expression and preparation of recombinant dynein heavy chains or individual subdomains.