| axoneme-dependent tubulin modifications in singlet microtubules of the drosophila sperm tail. | drosophila melanogaster sperm tubulins are posttranslationally glutamylated and glycylated. we show here that axonemes are the substrate for these tubulin c-terminal modifications. axoneme architecture is required, but full length, motile axonemes are not necessary. tubulin glutamylation occurs during or shortly after assembly into the axoneme; only glutamylated tubulins are glycylated. tubulins in other testis microtubules are not modified. only a small subset of total drosophila sperm axoneme ... | 2008 | 18205200 |