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Name the protein present in microtubules and microfilaments. cbse-biotechnology-class11-2014

Name the protein present in microtubules and microfilaments. 


Asked On2017-07-16 18:14:48 by:tarun101

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Microfilaments are composed of linear polymers of G-actin proteins, and generate force when the growing (plus) end of the filament pushes against a barrier, such as the cell membrane. They also act as tracks for the movement of myosin molecules that attach to the microfilament and "walk" along them.
Microtubules are hollow cylinders about 23 nm in diameter (lumen = approximately 15 nm in diameter), most commonly comprising 13 protofilaments that, in turn, are polymers of alpha and beta tubulin. They have a very dynamic behavior, binding GTP for polymerization. They are commonly organized by the centrosome.

Answerd on:2017-07-18 Answerd By:Aparna-Dasgupta

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