Animation sheds light on cellular transport service
Molecular motors, built from proteins, are a kind of transport service that keep us functioning by trafficking essential chemical packages throughout the cell. To understand how molecular motors work, some researchers are creating animations. Here, each "leg" of a molecular motor called dynein moves as it progresses along a cellular structure called a microtubule. New data suggest that dynein's walk is even stranger than the one modeled. After viewing the video, read an accompanying story.