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. Author manuscript; available in PMC: 2019 Aug 23.
Published in final edited form as: Prog Retin Eye Res. 2018 Dec 25;71:26–56. doi: 10.1016/j.preteyeres.2018.12.004

Figure 3.

Figure 3.

Basal body/axoneme backbone. A, basal body schematic representation with transition zone and axoneme. A-tubules (blue) and B-tubules (green) emanate from the basal body to form the transition zone which is characterized by y-links connecting the tubules to the ciliary membrane. While the proximal axoneme consists of microtubule doublets, the distal axoneme has singlets. DA, distal appendages; SDA, subdistal appendages; MT, microtubules; PCM, pericentriolar matrix; γT, γ-tubulin ring complex. B, Crossections of the axoneme, transition zone and basal body, distal-to-proximal respectively, indicating the arrangement of microtubule arrays. “+0” indicates absence of a central MT.