4jd2

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{{STRUCTURE_4jd2| PDB=4jd2 | SCENE= }}
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==Crystal structure of Bos taurus Arp2/3 complex binding with Mus musculus GMF==
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===Crystal structure of Bos taurus Arp2/3 complex binding with Mus musculus GMF===
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<StructureSection load='4jd2' size='340' side='right' caption='[[4jd2]], [[Resolution|resolution]] 3.08&Aring;' scene=''>
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{{ABSTRACT_PUBMED_23893131}}
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== Structural highlights ==
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<table><tr><td colspan='2'>[[4jd2]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4JD2 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4JD2 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=PG4:TETRAETHYLENE+GLYCOL'>PG4</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4jd2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4jd2 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4jd2 RCSB], [http://www.ebi.ac.uk/pdbsum/4jd2 PDBsum]</span></td></tr>
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</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The Arp2/3 complex mediates formation of complex cellular structures such as lamellipodia by nucleating branched actin filaments. Arp2/3-complex activity is precisely controlled by over a dozen regulators, yet the structural mechanism by which regulators interact with the complex is unknown. GMF is a recently discovered regulator of the Arp2/3 complex that can inhibit nucleation and disassemble branches. We solved the structure of the 240-kDa assembly of Mus musculus GMF and Bos taurus Arp2/3 complex and found that GMF binds the barbed end of Arp2, overlapping with the proposed binding site of WASP-family proteins. The structure suggests that GMF can bind branch junctions in the manner that cofilin binds filament sides, consistent with a modified cofilin-like mechanism for debranching by GMF. The GMF-Arp2 interface reveals how the ADF-H actin-binding domain in GMF is exploited to specifically recognize Arp2/3 complex and not actin.
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==Function==
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Structural basis for regulation of Arp2/3 complex by GMF.,Luan Q, Nolen BJ Nat Struct Mol Biol. 2013 Jul 28. doi: 10.1038/nsmb.2628. PMID:23893131<ref>PMID:23893131</ref>
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[[http://www.uniprot.org/uniprot/ARPC4_BOVIN ARPC4_BOVIN]] Functions as actin-binding component of the Arp2/3 complex which is involved in regulation of actin polymerization and together with an activating nucleation-promoting factor (NPF) mediates the formation of branched actin networks. Seems to contact the mother actin filament (By similarity). [[http://www.uniprot.org/uniprot/ARC1B_BOVIN ARC1B_BOVIN]] Functions as component of the Arp2/3 complex which is involved in regulation of actin polymerization and together with an activating nucleation-promoting factor (NPF) mediates the formation of branched actin networks (By similarity). [[http://www.uniprot.org/uniprot/ARPC5_BOVIN ARPC5_BOVIN]] Functions as component of the Arp2/3 complex which is involved in regulation of actin polymerization and together with an activating nucleation-promoting factor (NPF) mediates the formation of branched actin networks (By similarity). [[http://www.uniprot.org/uniprot/ARP2_BOVIN ARP2_BOVIN]] Functions as ATP-binding component of the Arp2/3 complex which is involved in regulation of actin polymerization and together with an activating nucleation-promoting factor (NPF) mediates the formation of branched actin networks. Seems to contact the pointed end of the daughter actin filament. [[http://www.uniprot.org/uniprot/ARP3_BOVIN ARP3_BOVIN]] Functions as ATP-binding component of the Arp2/3 complex which is involved in regulation of actin polymerization and together with an activating nucleation-promoting factor (NPF) mediates the formation of branched actin networks. Seems to contact the pointed end of the daughter actin filament. Plays a role in ciliogenesis (By similarity). [[http://www.uniprot.org/uniprot/ARPC2_BOVIN ARPC2_BOVIN]] Functions as actin-binding component of the Arp2/3 complex which is involved in regulation of actin polymerization and together with an activating nucleation-promoting factor (NPF) mediates the formation of branched actin networks. Seems to contact the mother actin filament (By similarity). [[http://www.uniprot.org/uniprot/ARPC3_BOVIN ARPC3_BOVIN]] Functions as component of the Arp2/3 complex which is involved in regulation of actin polymerization and together with an activating nucleation-promoting factor (NPF) mediates the formation of branched actin networks (By similarity).
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[4jd2]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4JD2 OCA].
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</div>
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:023893131</ref><references group="xtra"/><references/>
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__TOC__
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</StructureSection>
[[Category: Bos taurus]]
[[Category: Bos taurus]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Luan, Q.]]
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[[Category: Luan, Q]]
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[[Category: Nolen, B J.]]
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[[Category: Nolen, B J]]
[[Category: Actin filament polymerization and branching]]
[[Category: Actin filament polymerization and branching]]
[[Category: Structural protein]]
[[Category: Structural protein]]

Revision as of 12:25, 21 December 2014

Crystal structure of Bos taurus Arp2/3 complex binding with Mus musculus GMF

4jd2, resolution 3.08Å

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