2q20

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{{Seed}}
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==Structure of the germline Vk1 O18/O8 light chain variable domain homodimer==
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[[Image:2q20.png|left|200px]]
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<StructureSection load='2q20' size='340' side='right' caption='[[2q20]], [[Resolution|resolution]] 1.30&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2q20]] is a 2 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=2Q20 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2Q20 FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2q1e|2q1e]]</td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Vk1 O18/O8 light chain germline ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2q20 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2q20 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2q20 RCSB], [http://www.ebi.ac.uk/pdbsum/2q20 PDBsum]</span></td></tr>
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<table>
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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/q2/2q20_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/chain_selection.php?pdb_ID=2ata 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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Amyloidoses are devastating and currently incurable diseases in which the process of amyloid formation causes fatal cellular and organ damage. The molecular mechanisms underlying amyloidoses are not well known. In this study, we address the structural basis of immunoglobulin light chain amyloidosis, which results from deposition of light chains produced by clonal plasma cells. We compare light chain amyloidosis protein AL-09 to its wild-type counterpart, the kappaI O18/O8 light chain germline. Crystallographic studies indicate that both proteins form dimers. However, AL-09 has an altered dimer interface that is rotated 90 degrees from the kappaI O18/O8 dimer interface. The three non-conservative mutations in AL-09 are located within the dimer interface, consistent with their role in the decreased stability of this amyloidogenic protein. Moreover, AL-09 forms amyloid fibrils more quickly than kappaI O18/O8 in vitro. These results support the notion that the increased stability of the monomer and delayed fibril formation, together with a properly formed dimer, may be protective against amyloidogenesis. This could open a new direction into rational drug design for amyloidogenic proteins.
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Altered dimer interface decreases stability in an amyloidogenic protein.,Baden EM, Owen BA, Peterson FC, Volkman BF, Ramirez-Alvarado M, Thompson JR J Biol Chem. 2008 Jun 6;283(23):15853-60. Epub 2008 Apr 8. PMID:18400753<ref>PMID:18400753</ref>
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The line below this paragraph, containing "STRUCTURE_2q20", creates the "Structure Box" on the page.
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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or leave the SCENE parameter empty for the default display.
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-->
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{{STRUCTURE_2q20| PDB=2q20 | SCENE= }}
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===Structure of the germline Vk1 O18/O8 light chain variable domain homodimer===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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== References ==
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<!--
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<references/>
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The line below this paragraph, {{ABSTRACT_PUBMED_18400753}}, adds the Publication Abstract to the page
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__TOC__
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(as it appears on PubMed at http://www.pubmed.gov), where 18400753 is the PubMed ID number.
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</StructureSection>
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-->
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{{ABSTRACT_PUBMED_18400753}}
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==About this Structure==
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2Q20 is a 2 chains structure of sequences 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=2Q20 OCA].
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==Reference==
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<ref group="xtra">PMID:18400753</ref><references group="xtra"/>
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Baden, E M.]]
[[Category: Baden, E M.]]
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[[Category: Protein fibril]]
[[Category: Protein fibril]]
[[Category: Vk1]]
[[Category: Vk1]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Feb 17 16:14:56 2009''
 

Revision as of 07:05, 9 June 2014

Structure of the germline Vk1 O18/O8 light chain variable domain homodimer

2q20, resolution 1.30Å

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