Fig. 1: Structure of the ODA axonemal dynein bound to a doublet microtubule.

a Composite map showing the 24-nm repeat of the ODA bound to protofilaments A07 and A08 of the doublet microtubule (DMT). A single ODA complex (colored red) forms an elongated and inclined structure that interacts with both its neighbors. b Two views showing the ODA complex colored by subunit. The motor domains form a triple stack in which the motors of both β- and γ-HC interact with the tail domains of the proximal ODA. The minus (−) and plus (+) ends of the microtubule are indicated on the scale bar.