Artistic rendering of dynein motor proteins moving along microtubules, based on a crystal
structure reported by Carter et al. on p. 1159. This study reveals the architecture of the molecular
machine that powers the beating of cilia and intracellular transport and provides insight into the
mechanism by which energy from adenosine triphosphate hydrolyss is converted into motion.
Image: Graham Johnson, The Scripps Research Institute and grahamj.com