Actin: Difference between revisions

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Alexander Berchansky, Michal Harel, Joel L. Sussman

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	[[Actin]] is a protein found in all eukaryotic cells. It is the monomer of two types of filaments: microfilaments which are part of the cytoskeleton and thin filaments which are part of muscles. Three isoforms of actin are identified: α (Aa) (or G-actin) found in muscle tissue, β (Ab) and γ (Ag) actins are components of the cytoskeleton. F-actin is Aa bound to ATP. The images at the left and at the right correspond to one representative Actin, ''i.e.'' the crystal structure of rabbit Native G-actin ([[3hbt]]). For more details see<br /> [[F-actin]]<br /> [[Non-polymerizable monomeric actin]].<br /> <scene name='Actin/Cv/2'>Click here to see the difference between 2 conformations of bovine Ag actin</scene> (PDB entries [[1hlu]] and [[2btf]]; morph was taken from [http://molmovdb.org/cgi-bin/movie.cgi Gallery of Morphs] of the [http://molmovdb.org Yale Morph Server]).		[[Actin]] is a protein found in all eukaryotic cells. It is the monomer of two types of filaments: microfilaments which are part of the cytoskeleton and thin filaments which are part of muscles. Three isoforms of actin are identified: α (Aa) (or G-actin) found in muscle tissue, β (Ab) and γ (Ag) actins are components of the cytoskeleton. F-actin is Aa bound to ATP. The images at the left and at the right correspond to one representative Actin, ''i.e.'' the crystal structure of rabbit Native G-actin ([[3hbt]]). For more details see:<br /> [[F-actin]]<br /> [[Non-polymerizable monomeric actin]].<br /> <scene name='Actin/Cv/2'>Click here to see the difference between 2 conformations of bovine Ag actin</scene> (PDB entries [[1hlu]] and [[2btf]]; morph was taken from [http://molmovdb.org/cgi-bin/movie.cgi Gallery of Morphs] of the [http://molmovdb.org Yale Morph Server]).

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