1sq2
From Proteopedia
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| - | [[Image:1sq2.gif|left|200px]]<br /><applet load="1sq2" size="350" color="white" frame="true" align="right" spinBox="true" | ||
| - | caption="1sq2, resolution 1.45Å" /> | ||
| - | '''Crystal Structure Analysis of the Nurse Shark New Antigen Receptor (NAR) Variable Domain in Complex With Lyxozyme'''<br /> | ||
| - | == | + | ==Crystal Structure Analysis of the Nurse Shark New Antigen Receptor (NAR) Variable Domain in Complex With Lysozyme== |
| - | Cartilaginous fish are the phylogenetically oldest living organisms known | + | <StructureSection load='1sq2' size='340' side='right'caption='[[1sq2]], [[Resolution|resolution]] 1.45Å' scene=''> |
| + | == Structural highlights == | ||
| + | <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> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.45Å</td></tr> | ||
| + | <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> | ||
| + | <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> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/Q8AXI4_GINCI Q8AXI4_GINCI] | ||
| + | == 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/sq/1sq2_consurf.spt"</scriptWhenChecked> | ||
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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/main_output.php?pdb_ID=1sq2 ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | 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. | ||
| - | + | 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> | |
| - | + | ||
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| + | <div class="pdbe-citations 1sq2" style="background-color:#fffaf0;"></div> | ||
| + | |||
| + | ==See Also== | ||
| + | *[[Lysozyme 3D structures|Lysozyme 3D structures]] | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
[[Category: Gallus gallus]] | [[Category: Gallus gallus]] | ||
[[Category: Ginglymostoma cirratum]] | [[Category: Ginglymostoma cirratum]] | ||
| - | [[Category: | + | [[Category: Large Structures]] |
| - | + | [[Category: Dooley H]] | |
| - | [[Category: Dooley | + | [[Category: Flajnik MF]] |
| - | [[Category: Flajnik | + | [[Category: Stanfield RL]] |
| - | [[Category: Stanfield | + | [[Category: Wilson IA]] |
| - | [[Category: Wilson | + | |
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Current revision
Crystal Structure Analysis of the Nurse Shark New Antigen Receptor (NAR) Variable Domain in Complex With Lysozyme
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