1rdw

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{{STRUCTURE_1rdw| PDB=1rdw | SCENE= }}
{{STRUCTURE_1rdw| PDB=1rdw | SCENE= }}
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'''Actin Crystal Dynamics: Structural Implications for F-actin Nucleation, Polymerization and Branching Mediated by the Anti-parallel Dimer'''
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===Actin Crystal Dynamics: Structural Implications for F-actin Nucleation, Polymerization and Branching Mediated by the Anti-parallel Dimer===
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==Overview==
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Actin filament nucleation, polymerization, and branching are crucial steps in many forms of cell motility, cell shape, and intracellular organelle movements in a wide range of organisms. Previous biochemical data suggests that an anti-parallel actin dimer can incorporate itself into growing filamentous actin (F-actin) and has a role in branching. Furthermore, it is a widespread belief that nucleation is spawned from an actin trimer complex. Here we present the structures of actin dimers and trimers in two tetragonal crystal systems P4(3)2(1)2 and P4(3). Both crystal systems formed by an induced condensation transformation of a previously reported orthorhombic crystal system P2(1)2(1)2(1). Comparison between the three crystal systems demonstrates the dynamics and flexibility of actin-actin interactions. The dimer and trimer actin rearrangements observed between the three crystal systems may provide insight to in vivo actin-actin interactions that occur during the nucleation, polymerization, and branching of F-actin.
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{{ABSTRACT_PUBMED_15099571}}
==About this Structure==
==About this Structure==
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[[Category: Nucleation]]
[[Category: Nucleation]]
[[Category: Polymerization]]
[[Category: Polymerization]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 07:22:34 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 07:05:03 2008''

Revision as of 04:05, 28 July 2008

Image:1rdw.png

Template:STRUCTURE 1rdw

Actin Crystal Dynamics: Structural Implications for F-actin Nucleation, Polymerization and Branching Mediated by the Anti-parallel Dimer

Template:ABSTRACT PUBMED 15099571

About this Structure

1RDW is a Single protein structure of sequence from Oryctolagus cuniculus. Full crystallographic information is available from OCA.

Reference

Actin crystal dynamics: structural implications for F-actin nucleation, polymerization, and branching mediated by the anti-parallel dimer., Reutzel R, Yoshioka C, Govindasamy L, Yarmola EG, Agbandje-McKenna M, Bubb MR, McKenna R, J Struct Biol. 2004 Jun;146(3):291-301. PMID:15099571

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