astral microtubules


astral microtubules
microtubules that radiate outward from the mitotic spindle pole, forming the aster; they interact with the cellular cortex to orient the spindle in the cell.

Medical dictionary. 2011.

Look at other dictionaries:

  • Astral microtubules — are a subpopulation of microtubules, which only exist during and immediately before mitosis. They emanate from centrosomes, but are not associated with kinetochores. They are organized into radial arrays around the centrosomes. The turn over rate …   Wikipedia

  • Astral — can refer to: *Astral Buoyancy, a manufacturer of PFDS based in Asheville, NC *Astral, a dream pop band *Astral Media, a Canadian media corporation *Astral Telecom, a Romanian company *Astral projection and the astral plane, a controversial… …   Wikipedia

  • Microtubule — Space filling model of a microtubule segment derived from cryo electron microscopy. The protofilaments are seen running along the axis of the segment. The microtubule (+) end is towards the top of the image.[1] Microtubules are a component of the …   Wikipedia

  • Anaphase — Anaphase, from the ancient Greek ἀνά (up) and φάσις (stage), is the stage of mitosis when chromosomes separate in a eukaryotic cell. Each chromatid moves to opposite poles of the cell, the opposite ends of the mitotic spindle, near the… …   Wikipedia

  • Microtubule nucleation — tubulin, gamma Identifiers Symbol TUBG1 Alt. symbols TUBG Entrez 7283 …   Wikipedia

  • Centrosome — Schematic of typical animal cell, showing subcellular components. Organelles: (1) Nucleolus (2) Nucleus (3) Ribosomes (little dots) (4) Vesicle (5) Rough endoplasmic reticulum (ER) (6) Golgi apparatus (7) Cytoskeleton (8) Smooth ER (9)… …   Wikipedia

  • Cinetocoro — Imagen de una célula humana en mitosis, en la que los microtúbulos se muestran en verde (formando el huso mitótico), los cromosomas en azul en el ecuador del huso y los cinetocoros en rojo. El cinetocoro es una estructura proteica situada sobre… …   Wikipedia Español

  • sperm aster — the centriole, with astral microtubules, that precedes the male pronucleus during fertilization …   Medical dictionary

  • Kinetochore — Kinétochore Image d une cellule humaine avec: microtubules en vert, chromosomes (ADN) en bleu et kinétochores en rose Le kinétochore est un assemblage supramoléculaire de protéines au niveau des régions centromériques des chromosomes mitotiques.… …   Wikipédia en Français

  • Kinétochore — Image d une cellule humaine avec: microtubules en vert, chromosomes (ADN) en bleu et kinétochores en rose Le kinétochore est un assemblage supramoléculaire de protéines au niveau des régions centromériques des chromosomes mitotiques. Il existe… …   Wikipédia en Français


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