Spatially Confined Phase Separation Promotes Local Tubulin Availability to Stabilize Ciliary Microtubule Growth
How microtubule (MT) growth is locally sustained within cilia remains a central unanswered question in ciliogenesis. Here we identify RAT-1 as a regulator of ciliary tubulin homeostasis and MT growth. Genetic screens in Caenorhabditis elegans show that loss of RAT-1 suppresses the toxic effects of a mutant -tubulin and restores ciliary structure, while RAT-1 deficiency reduces tubulin turnover at…
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