2pav

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[[Image:2pav.jpg|left|200px]]
[[Image:2pav.jpg|left|200px]]
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{{Structure
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<!--
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|PDB= 2pav |SIZE=350|CAPTION= <scene name='initialview01'>2pav</scene>, resolution 1.800&Aring;
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The line below this paragraph, containing "STRUCTURE_2pav", creates the "Structure Box" on the page.
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|SITE=
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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|LIGAND= <scene name='pdbligand=ATP:ADENOSINE-5&#39;-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=HIC:4-METHYL-HISTIDINE'>HIC</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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|ACTIVITY=
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or leave the SCENE parameter empty for the default display.
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|GENE= PFN1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])
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|DOMAIN=
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{{STRUCTURE_2pav| PDB=2pav | SCENE= }}
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|RELATEDENTRY=
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2pav FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pav OCA], [http://www.ebi.ac.uk/pdbsum/2pav PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2pav RCSB]</span>
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'''Ternary complex of Profilin-Actin with the Last Poly-Pro of Human VASP'''
'''Ternary complex of Profilin-Actin with the Last Poly-Pro of Human VASP'''
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[[Category: Ferron, F.]]
[[Category: Ferron, F.]]
[[Category: Rebowski, G.]]
[[Category: Rebowski, G.]]
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[[Category: actin]]
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[[Category: Actin]]
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[[Category: loading poly-pro site]]
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[[Category: Loading poly-pro site]]
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[[Category: poly-proline]]
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[[Category: Poly-proline]]
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[[Category: profilin]]
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[[Category: Profilin]]
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[[Category: structural protein]]
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[[Category: Structural protein]]
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[[Category: ternary complex]]
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[[Category: Ternary complex]]
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[[Category: vasp]]
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[[Category: Vasp]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 12:45:05 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 04:33:42 2008''
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Revision as of 09:45, 4 May 2008


PDB ID 2pav

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2pav, resolution 1.80Å ()
Ligands: ,
Non-Standard Residues:
Gene: PFN1 (Homo sapiens)
Resources: FirstGlance, OCA, RCSB, PDBsum
Coordinates: save as pdb, mmCIF, xml



Ternary complex of Profilin-Actin with the Last Poly-Pro of Human VASP


Overview

Cells sustain high rates of actin filament elongation by maintaining a large pool of actin monomers above the critical concentration for polymerization. Profilin-actin complexes constitute the largest fraction of polymerization-competent actin monomers. Filament elongation factors such as Ena/VASP and formin catalyze the transition of profilin-actin from the cellular pool onto the barbed end of growing filaments. The molecular bases of this process are poorly understood. Here we present structural and energetic evidence for two consecutive steps of the elongation mechanism: the recruitment of profilin-actin by the last poly-Pro segment of vasodilator-stimulated phosphoprotein (VASP) and the binding of profilin-actin simultaneously to this poly-Pro and to the G-actin-binding (GAB) domain of VASP. The actin monomer bound at the GAB domain is proposed to be in position to join the barbed end of the growing filament concurrently with the release of profilin.

About this Structure

2PAV is a Protein complex structure of sequences from Homo sapiens and Oryctolagus cuniculus. Full crystallographic information is available from OCA.

Reference

Structural basis for the recruitment of profilin-actin complexes during filament elongation by Ena/VASP., Ferron F, Rebowski G, Lee SH, Dominguez R, EMBO J. 2007 Oct 31;26(21):4597-606. Epub 2007 Oct 4. PMID:17914456 Page seeded by OCA on Sun May 4 12:45:05 2008

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