2eyn: Difference between revisions
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==Crystal structure of the actin-binding domain of human alpha-actinin 1 at 1.8 Angstrom resolution== | ==Crystal structure of the actin-binding domain of human alpha-actinin 1 at 1.8 Angstrom resolution== | ||
<StructureSection load='2eyn' size='340' side='right' caption='[[2eyn]], [[Resolution|resolution]] 1.80Å' scene=''> | <StructureSection load='2eyn' size='340' side='right'caption='[[2eyn]], [[Resolution|resolution]] 1.80Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2eyn]] is a 1 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2eyn]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2EYN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2EYN FirstGlance]. <br> | ||
</td></tr><tr id=' | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.8Å</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2eyn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2eyn OCA], [https://pdbe.org/2eyn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2eyn RCSB], [https://www.ebi.ac.uk/pdbsum/2eyn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2eyn ProSAT]</span></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | |||
</table> | </table> | ||
== Function == | == Function == | ||
[ | [https://www.uniprot.org/uniprot/ACTN1_HUMAN ACTN1_HUMAN] F-actin cross-linking protein which is thought to anchor actin to a variety of intracellular structures. This is a bundling protein. | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ey/2eyn_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ey/2eyn_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
</jmolCheckbox> | </jmolCheckbox> | ||
</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/ | </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=2eyn ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 2eyn" style="background-color:#fffaf0;"></div> | |||
==See Also== | ==See Also== | ||
*[[Actinin|Actinin]] | *[[Actinin 3D structures|Actinin 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
| Line 35: | Line 36: | ||
</StructureSection> | </StructureSection> | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Borrego-Diaz | [[Category: Large Structures]] | ||
[[Category: Dominguez | [[Category: Borrego-Diaz E]] | ||
[[Category: Ferron | [[Category: Dominguez R]] | ||
[[Category: Kerff | [[Category: Ferron F]] | ||
[[Category: Lee | [[Category: Kerff F]] | ||
[[Category: Li | [[Category: Lee SH]] | ||
[[Category: Li Y]] | |||
Latest revision as of 10:40, 23 August 2023
Crystal structure of the actin-binding domain of human alpha-actinin 1 at 1.8 Angstrom resolutionCrystal structure of the actin-binding domain of human alpha-actinin 1 at 1.8 Angstrom resolution
Structural highlights
FunctionACTN1_HUMAN F-actin cross-linking protein which is thought to anchor actin to a variety of intracellular structures. This is a bundling protein. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedAlpha-actinin belongs to the spectrin family of actin crosslinking and bundling proteins that function as key regulators of cell motility, morphology and adhesion. The actin-binding domain (ABD) of these proteins consists of two consecutive calponin homology (CH) domains. Electron microscopy studies on ABDs appear to support two competing actin-binding models, extended and compact, whereas the crystal structures typically display a compact conformation. We have determined the 1.7A resolution structure of the ABD of alpha-actinin 1, a ubiquitously expressed isoform. The structure displays the classical compact conformation. We evaluated the two binding models by surface conservation analysis. The results show a conserved surface that spans both domains and corresponds to two previously identified actin-binding sites (ABS2 and ABS3). A third, and probably less important site, ABS1, is mostly buried in the compact conformation. However, a thorough examination of existing structures suggests a weak and semi-polar binding interface between the two CHs, leaving open the possibility of domain reorientation or opening. Our results are consistent with a two-step binding mechanism in which the ABD interacts first in the compact form observed in the structures, and then transitions toward a higher affinity state, possibly through minor rearrangement of the domains. Crystal structure of the actin-binding domain of alpha-actinin 1: evaluating two competing actin-binding models.,Borrego-Diaz E, Kerff F, Lee SH, Ferron F, Li Y, Dominguez R J Struct Biol. 2006 Aug;155(2):230-8. Epub 2006 Apr 25. PMID:16698282[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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