Figure 9.
Subdomains of the ciliary base during cilium formation. (A) The distal end of the centriole docks to the plasma membrane via its distal appendages and becomes the BB. (B) The DMTs of the distal BB then extend to form the TZ. Adjacent DMTs of the TZ are linked to each other via the TZ-linker and decorated internally with helical MIPs. (C) The axoneme then grows distally, becoming decorated with RS and dyneins to form a motile axoneme.