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Date Posted: 17:46:52 02/04/03 Tue
Author: mrs.t
Subject: Re: Peripharal Proteins and Exo/Endo Cytosis
In reply to: Sunny 's message, "Peripharal Proteins and Exo/Endo Cytosis" on 16:23:01 01/20/03 Mon

>What is the function of peripheral proteins?
>
The peripheral protein contribute to the strength of the cytoskeleton adn the framework.

>During Exo and Endo cytosis, at what point is ATP
>used? Like during the creation of vessicles or the
>movement of vessicles or what?

Both. Vesicles are moved by the cytoskeleton to the plasma membrane - this requires energy. Also, during endocytosis and exocytosis, the transport proteins are phosphorylated (energized phosphate transfers energy) in order to move materials against the concentration gradient.

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