Intraflagellar transport

Intraflagellar transport (IFT) is a bidirectional motility along axoneme microtubules that is essential for the formation (ciliogenesis) and maintenance of most eukaryotic cilia and flagella.

[2] IFT was first reported in 1993 by graduate student Keith Kozminski while working in the lab of Dr. Joel Rosenbaum at Yale University.

[3][4] The process of IFT has been best characterized in the biflagellate alga Chlamydomonas reinhardtii as well as the sensory cilia of the nematode Caenorhabditis elegans.

In healthy flagella, IFT particles reverse direction at the tip of the axoneme, and are thought to carry used proteins, or "turnover products," back to the base of the flagellum.

These subcomplexes were first described by Lucker et al. in an experiment on Chlamydomonas reinhardtii, using increased ionic strength to dissociate the peripheral particles from the whole IFT-B complex.

Intraflagellar transport in the cilia of the nematode C. elegans
A simplified model of intraflagellar transport.