4k43

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==Crystal structure of actin in complex with synthetic AplC tail analogue GC04 [N-{(1E,4R,5R,7E,9S,10S,11S)-4,10-dimethoxy-11-[(2S,4S,5S)-2-(4-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl]-5,9-dimethyl-6-oxododeca-1,7-dien-1-yl}-N-methylformamide]==
==Crystal structure of actin in complex with synthetic AplC tail analogue GC04 [N-{(1E,4R,5R,7E,9S,10S,11S)-4,10-dimethoxy-11-[(2S,4S,5S)-2-(4-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl]-5,9-dimethyl-6-oxododeca-1,7-dien-1-yl}-N-methylformamide]==
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<StructureSection load='4k43' size='340' side='right' caption='[[4k43]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
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<StructureSection load='4k43' size='340' side='right'caption='[[4k43]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[4k43]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4K43 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4K43 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[4k43]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4K43 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4K43 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=1PO:N-{(1E,4R,5R,7E,9S,10S,11S)-4,10-DIMETHOXY-11-[(2S,4S,5S)-2-(4-METHOXYPHENYL)-5-METHYL-1,3-DIOXAN-4-YL]-5,9-DIMETHYL-6-OXODODECA-1,7-DIEN-1-YL}-N-METHYLFORMAMIDE'>1PO</scene>, <scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.9&#8491;</td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4k41|4k41]], [[4k42|4k42]], [[1qz5|1qz5]]</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=1PO:N-{(1E,4R,5R,7E,9S,10S,11S)-4,10-DIMETHOXY-11-[(2S,4S,5S)-2-(4-METHOXYPHENYL)-5-METHYL-1,3-DIOXAN-4-YL]-5,9-DIMETHYL-6-OXODODECA-1,7-DIEN-1-YL}-N-METHYLFORMAMIDE'>1PO</scene>, <scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</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=4k43 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4k43 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4k43 RCSB], [http://www.ebi.ac.uk/pdbsum/4k43 PDBsum]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4k43 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4k43 OCA], [https://pdbe.org/4k43 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4k43 RCSB], [https://www.ebi.ac.uk/pdbsum/4k43 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4k43 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/ACTS_RABIT ACTS_RABIT]] Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells.
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[https://www.uniprot.org/uniprot/ACTS_RABIT ACTS_RABIT] Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells.
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The actin filament-binding and filament-severing activities of the aplyronine, kabiramide, and reidispongiolide families of marine macrolides are located within the hydrophobic tail region of the molecule. Two synthetic tail analogues of aplyronine C (SF-01 and GC-04) are shown to bind to G-actin with dissociation constants of (285+/-33) and (132+/-13) nM, respectively. The crystal structures of actin complexes with GC-04, SF-01, and kabiramide C reveal a conserved mode of tail binding within the cleft that forms between subdomains (SD) 1 and 3. Our studies support the view that filament severing is brought about by specific binding of the tail region to the SD1/SD3 cleft on the upper protomer, which displaces loop-D from the lower protomer on the same half-filament. With previous studies showing that the GC-04 analogue can sever actin filaments, it is argued that the shorter complex lifetime of tail analogues with F-actin would make them more effective at severing filaments compared with plasma gelsolin. Structure-based analyses are used to suggest more reactive or targetable forms of GC-04 and SF-01, which may serve to boost the capacity of the serum actin scavenging system, to generate antibody conjugates against tumor cell antigens, and to decrease sputum viscosity in children with cystic fibrosis.
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Structural and biochemical studies of actin in complex with synthetic macrolide tail analogues.,Pereira JH, Petchprayoon C, Hoepker AC, Moriarty NW, Fink SJ, Cecere G, Paterson I, Adams PD, Marriott G ChemMedChem. 2014 Oct;9(10):2286-93. doi: 10.1002/cmdc.201402150. Epub 2014 Jul, 22. PMID:25047814<ref>PMID:25047814</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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==See Also==
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</div>
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*[[Actin 3D structures|Actin 3D structures]]
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== References ==
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<references/>
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Large Structures]]
[[Category: Oryctolagus cuniculus]]
[[Category: Oryctolagus cuniculus]]
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[[Category: Adams, P D]]
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[[Category: Adams PD]]
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[[Category: Cecere, G]]
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[[Category: Cecere G]]
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[[Category: Fink, S J]]
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[[Category: Fink SJ]]
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[[Category: Marriott, G]]
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[[Category: Marriott G]]
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[[Category: Moriarty, N W]]
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[[Category: Moriarty NW]]
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[[Category: Paterson, I]]
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[[Category: Paterson I]]
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[[Category: Pereira, J H]]
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[[Category: Pereira JH]]
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[[Category: Petchprayoon, C]]
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[[Category: Petchprayoon C]]
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[[Category: Cell motility]]
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[[Category: Contractile protein]]
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[[Category: Gelsolin]]
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Current revision

Crystal structure of actin in complex with synthetic AplC tail analogue GC04 [N-{(1E,4R,5R,7E,9S,10S,11S)-4,10-dimethoxy-11-[(2S,4S,5S)-2-(4-methoxyphenyl)-5-methyl-1,3-dioxan-4-yl]-5,9-dimethyl-6-oxododeca-1,7-dien-1-yl}-N-methylformamide]

PDB ID 4k43

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