2d1k

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[[Image:2d1k.gif|left|200px]]<br /><applet load="2d1k" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="2d1k, resolution 2.50&Aring;" />
 
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'''Ternary complex of the WH2 domain of mim with actin-dnase I'''<br />
 
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==Overview==
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==Ternary complex of the WH2 domain of mim with actin-dnase I==
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The adaptor protein missing-in-metastasis (MIM) contains independent F-, and G-actin binding domains, consisting, respectively, of an N-terminal, 250 aa IRSp53/MIM homology domain (IMD) and a C-terminal WASP-homology, domain 2 (WH2). We determined the crystal structures of MIM's IMD and that, of its WH2 bound to actin. The IMD forms a dimer, with each subunit folded, as an antiparallel three-helix bundle. This fold is related to that of the, BAR domain. Like the BAR domain, the IMD has been implicated in membrane, binding. Yet, comparison of the structures reveals that the membrane, binding surfaces of the two domains have opposite curvatures, which may, determine the type of curvature of the interacting membrane. The WH2 of, MIM is longer than the prototypical WH2, interacting with all four, subdomains of actin. We characterize a similar WH2 at the C terminus of, IRSp53 and propose that in these two proteins WH2 performs a scaffolding, function.
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<StructureSection load='2d1k' size='340' side='right'caption='[[2d1k]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2d1k]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus], [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2D1K OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2D1K FirstGlance]. <br>
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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]] 2.5&#8491;</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=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=HIC:4-METHYL-HISTIDINE'>HIC</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></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=2d1k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2d1k OCA], [https://pdbe.org/2d1k PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2d1k RCSB], [https://www.ebi.ac.uk/pdbsum/2d1k PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2d1k ProSAT]</span></td></tr>
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</table>
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== Function ==
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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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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/d1/2d1k_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2d1k ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The adaptor protein missing-in-metastasis (MIM) contains independent F- and G-actin binding domains, consisting, respectively, of an N-terminal 250 aa IRSp53/MIM homology domain (IMD) and a C-terminal WASP-homology domain 2 (WH2). We determined the crystal structures of MIM's IMD and that of its WH2 bound to actin. The IMD forms a dimer, with each subunit folded as an antiparallel three-helix bundle. This fold is related to that of the BAR domain. Like the BAR domain, the IMD has been implicated in membrane binding. Yet, comparison of the structures reveals that the membrane binding surfaces of the two domains have opposite curvatures, which may determine the type of curvature of the interacting membrane. The WH2 of MIM is longer than the prototypical WH2, interacting with all four subdomains of actin. We characterize a similar WH2 at the C terminus of IRSp53 and propose that in these two proteins WH2 performs a scaffolding function.
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==About this Structure==
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Structural basis for the actin-binding function of missing-in-metastasis.,Lee SH, Kerff F, Chereau D, Ferron F, Klug A, Dominguez R Structure. 2007 Feb;15(2):145-55. PMID:17292833<ref>PMID:17292833</ref>
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2D1K is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus] with <scene name='pdbligand=CA:'>CA</scene>, <scene name='pdbligand=MG:'>MG</scene> and <scene name='pdbligand=ATP:'>ATP</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Deoxyribonuclease_I Deoxyribonuclease I], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.21.1 3.1.21.1] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2D1K OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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Structural basis for the actin-binding function of missing-in-metastasis., Lee SH, Kerff F, Chereau D, Ferron F, Klug A, Dominguez R, Structure. 2007 Feb;15(2):145-55. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17292833 17292833]
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</div>
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<div class="pdbe-citations 2d1k" style="background-color:#fffaf0;"></div>
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==See Also==
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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__
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</StructureSection>
[[Category: Bos taurus]]
[[Category: Bos taurus]]
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[[Category: Deoxyribonuclease I]]
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[[Category: Homo sapiens]]
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[[Category: Large Structures]]
[[Category: Oryctolagus cuniculus]]
[[Category: Oryctolagus cuniculus]]
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[[Category: Protein complex]]
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[[Category: Chereau D]]
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[[Category: Chereau, D.]]
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[[Category: Dominguez R]]
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[[Category: Dominguez, R.]]
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[[Category: Kerff F]]
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[[Category: Kerff, F.]]
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[[Category: ATP]]
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[[Category: CA]]
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[[Category: MG]]
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[[Category: actin]]
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[[Category: dnase i]]
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[[Category: wasp]]
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[[Category: wh2]]
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[[Category: wip]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jan 23 15:14:21 2008''
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Current revision

Ternary complex of the WH2 domain of mim with actin-dnase I

PDB ID 2d1k

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