1sq2

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{{Seed}}
 
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[[Image:1sq2.png|left|200px]]
 
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==Crystal Structure Analysis of the Nurse Shark New Antigen Receptor (NAR) Variable Domain in Complex With Lysozyme==
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The line below this paragraph, containing "STRUCTURE_1sq2", creates the "Structure Box" on the page.
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<StructureSection load='1sq2' size='340' side='right'caption='[[1sq2]], [[Resolution|resolution]] 1.45&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'>[[1sq2]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus] and [https://en.wikipedia.org/wiki/Ginglymostoma_cirratum Ginglymostoma cirratum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SQ2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SQ2 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]] 1.45&#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=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene></td></tr>
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{{STRUCTURE_1sq2| PDB=1sq2 | 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=1sq2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sq2 OCA], [https://pdbe.org/1sq2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1sq2 RCSB], [https://www.ebi.ac.uk/pdbsum/1sq2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1sq2 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/Q8AXI4_GINCI Q8AXI4_GINCI]
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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/sq/1sq2_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=1sq2 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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Cartilaginous fish are the phylogenetically oldest living organisms known to possess components of the vertebrate adaptive immune system. Key to their immune response are heavy-chain, homodimeric immunoglobulins called new antigen receptors (IgNARs), in which the variable (V) domains recognize antigens with only a single immunoglobulin domain, akin to camelid heavy-chain V domains. The 1.45 angstrom resolution crystal structure of the type I IgNAR V domain in complex with hen egg-white lysozyme (HEL) reveals a minimal antigen-binding domain that contains only two of the three conventional complementarity-determining regions but still binds HEL with nanomolar affinity by means of a binding interface comparable in size to conventional antibodies.
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===Crystal Structure Analysis of the Nurse Shark New Antigen Receptor (NAR) Variable Domain in Complex With Lyxozyme===
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Crystal structure of a shark single-domain antibody V region in complex with lysozyme.,Stanfield RL, Dooley H, Flajnik MF, Wilson IA Science. 2004 Sep 17;305(5691):1770-3. Epub 2004 Aug 19. PMID:15319492<ref>PMID:15319492</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 1sq2" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_15319492}}, adds the Publication Abstract to the page
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*[[Lysozyme 3D structures|Lysozyme 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 15319492 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_15319492}}
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__TOC__
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</StructureSection>
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==About this Structure==
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1SQ2 is a 2 chains structure of sequences from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus] and [http://en.wikipedia.org/wiki/Ginglymostoma_cirratum Ginglymostoma cirratum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SQ2 OCA].
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==Reference==
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<ref group="xtra">PMID:15319492</ref><references group="xtra"/>
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[[Category: Gallus gallus]]
[[Category: Gallus gallus]]
[[Category: Ginglymostoma cirratum]]
[[Category: Ginglymostoma cirratum]]
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[[Category: Lysozyme]]
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[[Category: Large Structures]]
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[[Category: Dooley, H.]]
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[[Category: Dooley H]]
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[[Category: Flajnik, M F.]]
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[[Category: Flajnik MF]]
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[[Category: Stanfield, R L.]]
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[[Category: Stanfield RL]]
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[[Category: Wilson, I A.]]
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[[Category: Wilson IA]]
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[[Category: Immunoglobulin fold]]
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[[Category: Protein-protein complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Feb 18 08:41:13 2009''
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Current revision

Crystal Structure Analysis of the Nurse Shark New Antigen Receptor (NAR) Variable Domain in Complex With Lysozyme

PDB ID 1sq2

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