3bqu

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{{Seed}}
 
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[[Image:3bqu.png|left|200px]]
 
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==Crystal Structure of the 2F5 Fab'-3H6 Fab Complex==
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The line below this paragraph, containing "STRUCTURE_3bqu", creates the "Structure Box" on the page.
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<StructureSection load='3bqu' size='340' side='right'caption='[[3bqu]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[3bqu]] is a 4 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=3BQU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3BQU FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 3&#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=SO4:SULFATE+ION'>SO4</scene></td></tr>
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{{STRUCTURE_3bqu| PDB=3bqu | SCENE= }}
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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=3bqu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3bqu OCA], [https://pdbe.org/3bqu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3bqu RCSB], [https://www.ebi.ac.uk/pdbsum/3bqu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3bqu ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/Q6PYX1_HUMAN Q6PYX1_HUMAN]
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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/bq/3bqu_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=3bqu 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 monoclonal antibody 2F5 neutralizes a broad range of human immunodeficiency virus-1 isolates via a conserved epitope on the viral glycoprotein gp41. The conformation of the principal epitope is a type I beta-turn centered on gp41 residues (664)DKW(666); in addition, binding studies indicate that residues N- and C-terminal to this core as well as structurally more distant parts of gp41 also contribute to the interaction. Ab2/3H6 is an anti-idiotypic antibody that inhibits the interaction between 2F5 and gp41 and as such, Ab2/3H6 may, in principle, possess a paratope that mimics the gp41 epitope. To establish the potential of Ab2/3H6 to serve as a guide for the design of vaccine components against human immunodeficiency virus, we investigated the crystal structure of the heterodimeric complex of Ab2/3H6 F(ab) and 2F5 F(ab)'. Ab2/3H6 F(ab) binds to 2F5 F(ab)' via a helix-like protrusion formed by residues (58(H))RYSPSLNTRL(67(H)) of the 2F5 F(ab)' variable domain and proximal to but not overlapping with the gp41 (664)DKW(666) epitope-binding pocket. This defines Ab2/3H6 as an anti-idiotypic antibody of the Ab2gamma class, i.e., an antigen-inhibitable idiotype that does not carry the internal image of the linear primary gp41 (662)ELDKWAS(668) epitope.
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===Crystal Structure of the 2F5 Fab'-3H6 Fab Complex===
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Crystal structure of the complex between the F(ab)' fragment of the cross-neutralizing anti-HIV-1 antibody 2F5 and the F(ab) fragment of its anti-idiotypic antibody 3H6.,Bryson S, Julien JP, Isenman DE, Kunert R, Katinger H, Pai EF J Mol Biol. 2008 Oct 17;382(4):910-9. Epub 2008 Jul 27. PMID:18692506<ref>PMID:18692506</ref>
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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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<div class="pdbe-citations 3bqu" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_18692506}}, adds the Publication Abstract to the page
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*[[Antibody 3D structures|Antibody 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 18692506 is the PubMed ID number.
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*[[3D structures of human antibody|3D structures of human antibody]]
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== References ==
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{{ABSTRACT_PUBMED_18692506}}
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<references/>
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__TOC__
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==About this Structure==
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</StructureSection>
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3BQU is a 4 chains structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3BQU OCA].
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==Reference==
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<ref group="xtra">PMID:18692506</ref><references group="xtra"/>
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Bryson, S.]]
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[[Category: Bryson S]]
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[[Category: Isenman, D E.]]
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[[Category: Isenman DE]]
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[[Category: Julien, J P.]]
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[[Category: Julien J-P]]
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[[Category: Katinger, H.]]
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[[Category: Katinger H]]
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[[Category: Kunert, R.]]
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[[Category: Kunert R]]
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[[Category: Pai, E F.]]
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[[Category: Pai EF]]
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[[Category: Beta sheet]]
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[[Category: Immune system]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Feb 16 22:18:36 2009''
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Current revision

Crystal Structure of the 2F5 Fab'-3H6 Fab Complex

PDB ID 3bqu

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