radial spoke


radial spoke
The structure that links the outer microtubule doublet of the ciliary axoneme with the sheath that surrounds the central pair of microtubules. The spokes are arranged periodically along the axoneme every 29nm, have a stalk about 32nm long and a bulbous region adjacent to the sheath. At least 17 different polypeptides are associated with the spokes. Spokes are thought to restrict the sliding of doublets relative to one another; digestion of the radial spokes will allow sliding apart of the doublets.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • Radial spoke — The radial spoke is a multi unit protein structure found in the axonemes of eukaryotic cilia and flagella. Although experiments have determined the importance of the radial spoke in the proper function of these organelles, its structure and mode… …   Wikipedia

  • radial — ► ADJECTIVE 1) of or arranged like rays or the radii of a circle; diverging in lines from a common centre. 2) (also radial ply) (of a tyre) in which the layers of fabric have their cords running at right angles to the circumference of the tyre.… …   English terms dictionary

  • spoke — [1] ► NOUN 1) each of the bars or wire rods connecting the centre of a wheel to its rim. 2) each of a set of radial handles projecting from a ship s wheel. 3) each of the metal rods in an umbrella to which the material is attached. ● put a spoke… …   English terms dictionary

  • Spoke — A spoke is one of some number of rods radiating from the center of a wheel (the hub where the axle connects), connecting the hub with the round traction surface. The term originally referred to portions of a log which had been split lengthwise… …   Wikipedia

  • Radial — In skeletal anatomy, radial refers to the radius, the smaller of the two bones on the thumb side of the forearm. (The bigger bone in the forearm is the ulna). In ophthalmology, a radial keratotomy is a procedure in which incisions (cuts) are made …   Medical dictionary

  • spoke — 1. n. & v. n. 1 each of the bars running from the hub to the rim of a wheel. 2 a rung of a ladder. 3 each radial handle of the wheel of a ship etc. v.tr. 1 provide with spokes. 2 obstruct (a wheel etc.) by thrusting a spoke in. Phrases and idioms …   Useful english dictionary

  • spoke — spoke1 noun 1》 each of the bars or wire rods connecting the centre of a wheel to its rim. 2》 each of a set of radial handles projecting from a ship s wheel. 3》 each of the metal rods in an umbrella to which the material is attached. Phrases put a …   English new terms dictionary

  • wheel spoke — noun support consisting of a radial member of a wheel joining the hub to the rim • Syn: ↑spoke, ↑radius • Hypernyms: ↑support • Part Holonyms: ↑bicycle wheel, ↑cartwheel, ↑wagon wheel …   Useful english dictionary

  • RSHL1 — Radial spokehead like 1, also known as RSHL1, is a human gene.cite web | title = Entrez Gene: RSHL1 radial spokehead like 1| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=81492| accessdate = ] PBB Summary… …   Wikipedia

  • Wheelbuilding — is the art and science of assembling a wheel (generally a bicycle wheel, although such wheels are also used on wheelchairs, motorcycles, and some cars, and known as wire wheels) from its component rim, spokes, nipples and hub.GoalsA good… …   Wikipedia


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