Functional protofilament numbering of ciliary, flagellar, and centriolar microtubules.

This article discusses the current state of knowledge about the evolutionarily conserved structure of ciliary, flagellar and centriolar microtubules, and formally proposes a functional numbering convention for their protofilaments. Cell Motil. Cytoskeleton 2007. © 2007 Wiley-Liss, Inc.