PMID- 16169494 OWN - NLM STAT- MEDLINE DCOM- 20060418 LR - 20160610 IS - 0960-9822 (Print) IS - 0960-9822 (Linking) VI - 15 IP - 18 DP - 2005 Sep 20 TI - Intraflagellar transport is required for the vectorial movement of TRPV channels in the ciliary membrane. PG - 1695-9 AB - The membranes of all eukaryotic motile (9 + 2) and immotile primary (9 + 0) cilia harbor channels and receptors involved in sensory transduction (reviewed by). These membrane proteins are transported from the cytoplasm onto the ciliary membrane by vesicles targeted for exocytosis at a point adjacent to the ciliary basal body. Here, we use time-lapse fluorescence microscopy to demonstrate that select GFP-tagged sensory receptors undergo rapid vectorial transport along the entire length of the cilia of Caenorhabditis elegans sensory neurons. Transient receptor potential vanilloid (TRPV) channels OSM-9 and OCR-2 move in ciliary membranes at rates comparable to the intraflagellar transport (IFT) machinery located between the membrane and the underlying axonemal microtubules. OSM-9 motility is disrupted in certain IFT mutant backgrounds. Surprisingly, motility of transient receptor potential polycystin (TRPP) channel PKD-2 (polycystic kidney disease-2), a mechano-receptor, was not detected. Our study demonstrates that IFT, previously shown to be necessary for transport of axonemal components, is also involved in the motility of TRPV membrane protein movement along cilia of C. elegans sensory cells. FAU - Qin, Hongmin AU - Qin H AD - Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut 06511, USA. FAU - Burnette, Dylan T AU - Burnette DT FAU - Bae, Young-Kyung AU - Bae YK FAU - Forscher, Paul AU - Forscher P FAU - Barr, Maureen M AU - Barr MM FAU - Rosenbaum, Joel L AU - Rosenbaum JL LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - England TA - Curr Biol JT - Current biology : CB JID - 9107782 RN - 0 (Caenorhabditis elegans Proteins) RN - 0 (Ion Channels) RN - 0 (Membrane Proteins) RN - 0 (Nerve Tissue Proteins) RN - 0 (OCR-2 protein, C elegans) RN - 0 (OSM-9 protein, C elegans) RN - 0 (TRPP Cation Channels) RN - 0 (TRPV Cation Channels) RN - 0 (Transient Receptor Potential Channels) RN - 0 (polycystic kidney disease 2 protein) RN - 147336-22-9 (Green Fluorescent Proteins) SB - IM MH - Animals MH - Biological Transport/physiology MH - Caenorhabditis elegans/*physiology MH - Caenorhabditis elegans Proteins/*metabolism MH - Cell Membrane/*metabolism MH - Cilia/*metabolism MH - Green Fluorescent Proteins MH - Ion Channels/*metabolism MH - Membrane Proteins/metabolism MH - Microscopy, Fluorescence MH - Nerve Tissue Proteins/*metabolism MH - Neurons, Afferent/*metabolism/physiology MH - TRPP Cation Channels MH - TRPV Cation Channels MH - Transient Receptor Potential Channels/*metabolism EDAT- 2005/09/20 09:00 MHDA- 2006/04/19 09:00 CRDT- 2005/09/20 09:00 PHST- 2005/06/15 00:00 [received] PHST- 2005/08/01 00:00 [revised] PHST- 2005/08/09 00:00 [accepted] PHST- 2005/09/20 09:00 [pubmed] PHST- 2006/04/19 09:00 [medline] PHST- 2005/09/20 09:00 [entrez] AID - S0960-9822(05)00966-8 [pii] AID - 10.1016/j.cub.2005.08.047 [doi] PST - ppublish SO - Curr Biol. 2005 Sep 20;15(18):1695-9. doi: 10.1016/j.cub.2005.08.047.