Structure - • Actin monomer [globular G actin ] •...

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Structure: Thin, flexible filaments approximately 7nm in diameter, several micrometers in length particularly abundant beneath the plasma membrane many more actin filaments in a cell than microtubules Composed of subunits of actin. Actin represents 20% of total cell protein in muscle cells.
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Unformatted text preview: • Actin monomer [globular G actin ] • Individual monomers polymerize to form F actin (filamentous actin). • Filaments have a distinct polarity with a an end designated as the plus end and an end designated as the minus end....
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This document was uploaded on 11/03/2011 for the course BIOLOGY MCB2010 at Broward College.

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