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DynactinDynactin or Dynein activator complex is a multi-subunit protein found in eukaryotic cells that aids in bidirectional intracellular organelle transport by binding to dynein and Kinesin II and linking them to the organelles to be transported.[1][2] Product highlight
Structure and mechanism of actionDynactin consists of many subunits of which the p150Glued doublet (encoded by the DCTN1 gene) is the largest and has been found to be essential for function. [1] This structure of dynactin is highly conserved in vertebrates. There are three isoforms encoded by a single gene. [3] Dynactin interacts with dynein directly by the binding of dynein intermediate chains with the p150Glued doublet. [4] FunctionsDynactin is often essential for dynein activity [1] and can be thought of as a "dynein receptor"[4] that modulates binding of dynein to cell organelles which are to be transported along microtubules. [5] Dynactin is involved in various processes like chromosome alignment and spindle organization [5] in cell division,[6] maintaining nuclear position[7] in addition to transport of various organelles in the cytoplasm. Dynactin also links Kinesin II to organelles. See also
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Dynactin". A list of authors is available in Wikipedia. |
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