doublet microtubules

doublet microtubules
Microtubules of the axoneme. The outer nine sets are often referred to as doublet microtubules, although only one (the A tubule) is complete and has 13 protofilaments. The B-tubule has only 10 or 11 protofilaments, and shares the remainder with the A-tubule. A and B tubules differ in their stability and in the other proteins attached periodically to them; it is the dynein affixed to the A tubule attaching and detaching from the B tubule of the adjacent doublet that generates sliding movement in the axoneme.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • doublet — noun Etymology: Middle English, from Anglo French dublet, from duble Date: 14th century 1. a man s close fitting jacket worn in Europe especially during the Renaissance 2. something consisting of two identical or similar parts: as a. a lens… …   New Collegiate Dictionary

  • doublet — 1. A combination of two lenses designed to correct the chromatic and spherical aberration. 2. SYN: dipole. 3. Any sequence of two nucleotides in a polynucleotide strand. 4. A closely spaced pair of peaks or lines in a spectrum …   Medical dictionary

  • Axoneme — Numerous eukaryotic cells carry whip like appendages (cilia or eukaryotic flagella) whose inner core consists of a cytoskeletal structure called the axoneme. The axoneme serves as the skeleton of these organelles, both giving support to the… …   Wikipedia

  • Flagellum — For the insect anatomical structure, see Antenna (biology). For the flagella of male Solifugae, see Solifugae. Flagella Code TH H1. A flagellum ( …   Wikipedia

  • axoneme — 1. The central thread running in the axis of the chromosome. 2. SYN: axial filament. 3. The distinctive array of microtubules in the core of eukaryotic cilia and flagella comprising a central pair surrounded by a sheaf of nine doublet… …   Medical 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 = Cmd=ShowDetailView TermToSearch=81492| accessdate = ] PBB Summary… …   Wikipedia

  • Arm — In popular usage, the arm extends from the shoulder to the hand. However, in medical terminology, the arm refers to the upper extremity extending from the shoulder only to the elbow. The arm is thus distinguished in medical usage from the forearm …   Medical dictionary

  • Intraflagellar transport — or IFT is the cellular process essential for the formation and maintenance of eukaryotic cilia and flagella. IFT, first discovered in 1993 by graduate student Keith Kozminski while working in the lab of Dr. Joel Rosenbaum… …   Wikipedia

  • DNAI1 — Dynein, axonemal, intermediate chain 1 Identifiers Symbols DNAI1; CILD1; ICS; ICS1; MGC26204; PCD External IDs …   Wikipedia

  • MOUVEMENTS CELLULAIRES — Le mouvement est une des manifestations fondamentales de la vie. Contrairement aux mouvements passifs des molécules, liés à l’agitation thermique, qui se font parfaitement au hasard et en ne consommant que de l’énergie cinétique, les mouvements… …   Encyclopédie Universelle

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.