2r0w

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[[Image:2r0w.gif|left|200px]]<br /><applet load="2r0w" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="2r0w, resolution 2.503&Aring;" />
 
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'''PFA2 FAB complexed with Abeta1-8'''<br />
 
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==Overview==
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==PFA2 FAB complexed with Abeta1-8==
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Amyloid aggregates of the amyloid-beta (Abeta) peptide are implicated in, the pathology of Alzheimer's disease. Anti-Abeta monoclonal antibodies, (mAbs) have been shown to reduce amyloid plaques in vitro and in animal, studies. Consequently, passive immunization is being considered for, treating Alzheimer's, and anti-Abeta mAbs are now in phase II trials. We, report the isolation of two mAbs (PFA1 and PFA2) that recognize Abeta, monomers, protofibrils, and fibrils and the structures of their antigen, binding fragments (Fabs) in complex with the Abeta(1-8) peptide DAEFRHDS., The immunodominant EFRHD sequence forms salt bridges, hydrogen bonds, and, hydrophobic contacts, including interactions with a striking WWDDD motif, of the antigen binding fragments. We also show that a similar sequence, (AKFRHD) derived from the human protein GRIP1 is able to cross-react with, both PFA1 and PFA2 and, when cocrystallized with PFA1, binds in an, identical conformation to Abeta(1-8). Because such cross-reactivity has, implications for potential side effects of immunotherapy, our structures, provide a template for designing derivative mAbs that target Abeta with, improved specificity and higher affinity.
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<StructureSection load='2r0w' size='340' side='right'caption='[[2r0w]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2r0w]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2R0W OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2R0W 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]] 2.503&#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=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=YCM:S-(2-AMINO-2-OXOETHYL)-L-CYSTEINE'>YCM</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=2r0w FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2r0w OCA], [https://pdbe.org/2r0w PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2r0w RCSB], [https://www.ebi.ac.uk/pdbsum/2r0w PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2r0w ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/A2NHM3_MOUSE A2NHM3_MOUSE]
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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/r0/2r0w_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=2r0w 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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Amyloid aggregates of the amyloid-beta (Abeta) peptide are implicated in the pathology of Alzheimer's disease. Anti-Abeta monoclonal antibodies (mAbs) have been shown to reduce amyloid plaques in vitro and in animal studies. Consequently, passive immunization is being considered for treating Alzheimer's, and anti-Abeta mAbs are now in phase II trials. We report the isolation of two mAbs (PFA1 and PFA2) that recognize Abeta monomers, protofibrils, and fibrils and the structures of their antigen binding fragments (Fabs) in complex with the Abeta(1-8) peptide DAEFRHDS. The immunodominant EFRHD sequence forms salt bridges, hydrogen bonds, and hydrophobic contacts, including interactions with a striking WWDDD motif of the antigen binding fragments. We also show that a similar sequence (AKFRHD) derived from the human protein GRIP1 is able to cross-react with both PFA1 and PFA2 and, when cocrystallized with PFA1, binds in an identical conformation to Abeta(1-8). Because such cross-reactivity has implications for potential side effects of immunotherapy, our structures provide a template for designing derivative mAbs that target Abeta with improved specificity and higher affinity.
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==About this Structure==
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Molecular basis for passive immunotherapy of Alzheimer's disease.,Gardberg AS, Dice LT, Ou S, Rich RL, Helmbrecht E, Ko J, Wetzel R, Myszka DG, Patterson PH, Dealwis C Proc Natl Acad Sci U S A. 2007 Oct 2;104(40):15659-64. Epub 2007 Sep 25. PMID:17895381<ref>PMID:17895381</ref>
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2R0W is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] with <scene name='pdbligand=NA:'>NA</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2R0W 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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Molecular basis for passive immunotherapy of Alzheimer's disease., Gardberg AS, Dice LT, Ou S, Rich RL, Helmbrecht E, Ko J, Wetzel R, Myszka DG, Patterson PH, Dealwis C, Proc Natl Acad Sci U S A. 2007 Oct 2;104(40):15659-64. Epub 2007 Sep 25. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17895381 17895381]
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</div>
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[[Category: Mus musculus]]
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<div class="pdbe-citations 2r0w" style="background-color:#fffaf0;"></div>
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[[Category: Protein complex]]
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[[Category: Dealwis, C.]]
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[[Category: Gardberg, A.S.]]
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[[Category: NA]]
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[[Category: immune system]]
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[[Category: immunoglobulin; alzheimer disease; amyloid]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jan 23 12:54:12 2008''
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==See Also==
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*[[Amyloid precursor protein 3D structures|Amyloid precursor protein 3D structures]]
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*[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Homo sapiens]]
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[[Category: Large Structures]]
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[[Category: Mus musculus]]
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[[Category: Dealwis C]]
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[[Category: Gardberg AS]]

Current revision

PFA2 FAB complexed with Abeta1-8

PDB ID 2r0w

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