Tektin makes a microtubule a "micropillar".

Gu, Yuzhong; Zhao, Yimeng; Ichikawa, Muneyoshi · Cell · 2023

basic_science · Level V

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Abstract

Inside sperm flagella, there are nine doublet microtubules composed of A and B tubules. In this issue of Cell, Leung et al. and Zhou et al. present high-resolution cryo-EM structures of doublet microtubules from mammalian sperms and show unprecedented structures of the A tubules, which are almost entirely occupied with tektin bundles.

Medical subject headings