Axonemal Dyneins

Axonemal Dyneins come in multiple forms that contain either one, two or three non-identical heavy chains. Each heavy chain has a globular motor domain, a "stalk" that binds to the microtubule and an extended tail (or "stem") that attaches to a neighbouring microtubule of the same axoneme. Each Dynein molecule thus forms a cross-bridge between two adjacent microtubules of the axoneme.