ArticleThe Journal of cell biology2024
Distinct roles of Kif6 and Kif9 in mammalian ciliary trafficking and motility.
Article in The Journal of cell biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- The KIF6-RBP Complex Orchestrates mRNA Transport Required for Sperm Flagellar Assembly.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Screening the composition of tubulin isotypes reveals the most abundant TUBB4B for ciliary polarity in ependymal cells.Journal of molecular cell biology · 2026Article
- RGS22 is a metazoa-specific radial spoke component required for coordinated ciliary beating.Nature communications · 2026Article
- JHY enables the transition from switchable to fixed ciliary waveforms in metazoan evolution.EMBO reports · 2026Article
- The kinesin-4 protein KIF27 forms a cytoskeletal scaffold at the transition zone to promote motile cilia structural integrity.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Advances in Imaging Techniques for Mammalian/Human Ciliated Cell's Cilia: Insights into Structure, Function, and Dynamics.Biology · 2025Review
- Mechanism and regulation of kinesin motors.Nature reviews. Molecular cell biology · 2025Review
- Two Tetrahymena kinesin-9 family members exhibit slow plus-end-directed motility in vitro.Scientific reports · 2024Article
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Authors and funding
12 authors.
Funding
Abstract
Ciliary beat and intraflagellar transport depend on dynein and kinesin motors. The kinesin-9 family members Kif6 and Kif9 are implicated in motile cilia motilities across protists and mammals. How they function and whether they act redundantly, however, remain unclear. Here, we show that Kif6 and Kif9 play distinct roles in mammals. Kif6 forms puncta that move bidirectionally along axonemes, whereas Kif9 appears to oscillate regionally on the ciliary central apparatus. Consistently, only Kif6 displays microtubule-based motor activity in vitro, and its ciliary localization requires its ATPase activity. Kif6 deficiency in mice disrupts coordinated ciliary beat across ependymal tissues and impairs cerebrospinal fluid flow, resulting in severe hydrocephalus and high mortality. Kif9 deficiency causes mild hydrocephalus without obviously affecting the ciliary beat or the lifespan. Kif6-/- and Kif9-/- males are infertile but exhibit oligozoospermia with poor sperm motility and defective forward motion of sperms, respectively. These results suggest Kif6 as a motor for cargo transport and Kif9 as a central apparatus regulator.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.