3lue
From Proteopedia
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| - | + | ==Model of alpha-actinin CH1 bound to F-actin== | |
| - | === | + | <StructureSection load='3lue' size='340' side='right' caption='[[3lue]], [[Resolution|resolution]] 15.00Å' scene=''> |
| - | + | == Structural highlights == | |
| + | <table><tr><td colspan='2'>[[3lue]] is a 20 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3LUE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3LUE FirstGlance]. <br> | ||
| + | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ACTB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), ACTN3 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr> | ||
| + | <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=3lue FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3lue OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3lue RCSB], [http://www.ebi.ac.uk/pdbsum/3lue PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | == Disease == | ||
| + | [[http://www.uniprot.org/uniprot/ACTB_HUMAN ACTB_HUMAN]] Defects in ACTB are a cause of dystonia juvenile-onset (DYTJ) [MIM:[http://omim.org/entry/607371 607371]]. DYTJ is a form of dystonia with juvenile onset. Dystonia is defined by the presence of sustained involuntary muscle contraction, often leading to abnormal postures. DYTJ patients manifest progressive, generalized, dopa-unresponsive dystonia, developmental malformations and sensory hearing loss.<ref>PMID:16685646</ref> Defects in ACTB are the cause of Baraitser-Winter syndrome type 1 (BRWS1) [MIM:[http://omim.org/entry/243310 243310]]. A rare developmental disorder characterized by the combination of congenital ptosis, high-arched eyebrows, hypertelorism, ocular colobomata, and a brain malformation consisting of anterior-predominant lissencephaly. Other typical features include postnatal short stature and microcephaly, intellectual disability, seizures, and hearing loss.<ref>PMID:22366783</ref> | ||
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/ACTB_HUMAN ACTB_HUMAN]] Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells. [[http://www.uniprot.org/uniprot/ACTN3_HUMAN ACTN3_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 == | ||
| + | [[Image:Consurf_key_small.gif|200px|right]] | ||
| + | Check<jmol> | ||
| + | <jmolCheckbox> | ||
| + | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/lu/3lue_consurf.spt"</scriptWhenChecked> | ||
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
| + | <text>to colour the structure by Evolutionary Conservation</text> | ||
| + | </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/chain_selection.php?pdb_ID=2ata ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Many actin-binding proteins contain calponin homology (CH) domains, but the manner in which these domains interact with F-actin has been controversial. Crystal structures have shown the tandem CH domains of alpha-actinin to be in a compact, closed conformation, but the interpretations of complexes of such tandem CH domains with F-actin have been ambiguous. We show that the tandem CH domains of alpha-actinin bind F-actin in an open conformation, explaining mutations that cause human diseases and suggesting that the opening of these domains may be one of the main regulatory mechanisms for proteins with tandem CH domains. | ||
| - | + | Opening of tandem calponin homology domains regulates their affinity for F-actin.,Galkin VE, Orlova A, Salmazo A, Djinovic-Carugo K, Egelman EH Nat Struct Mol Biol. 2010 May;17(5):614-6. Epub 2010 Apr 11. PMID:20383143<ref>PMID:20383143</ref> | |
| - | + | ||
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
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==See Also== | ==See Also== | ||
*[[Actin|Actin]] | *[[Actin|Actin]] | ||
*[[Actinin|Actinin]] | *[[Actinin|Actinin]] | ||
| - | + | == References == | |
| - | == | + | <references/> |
| - | + | __TOC__ | |
| + | </StructureSection> | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
| - | [[Category: Djinovic-Carugo, K | + | [[Category: Djinovic-Carugo, K]] |
| - | [[Category: Egelman, E H | + | [[Category: Egelman, E H]] |
| - | [[Category: Galkin, V E | + | [[Category: Galkin, V E]] |
| - | [[Category: Orlova, A | + | [[Category: Orlova, A]] |
| - | [[Category: Salmazo, A | + | [[Category: Salmazo, A]] |
[[Category: Actin-binding]] | [[Category: Actin-binding]] | ||
[[Category: Atp-binding]] | [[Category: Atp-binding]] | ||
Revision as of 15:11, 18 December 2014
Model of alpha-actinin CH1 bound to F-actin
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