1bih

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[[Image:1bih.gif|left|200px]]<br /><applet load="1bih" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="1bih, resolution 3.10&Aring;" />
 
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'''CRYSTAL STRUCTURE OF THE INSECT IMMUNE PROTEIN HEMOLIN: A NEW DOMAIN ARRANGEMENT WITH IMPLICATIONS FOR HOMOPHILIC ADHESION'''<br />
 
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==Overview==
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==CRYSTAL STRUCTURE OF THE INSECT IMMUNE PROTEIN HEMOLIN: A NEW DOMAIN ARRANGEMENT WITH IMPLICATIONS FOR HOMOPHILIC ADHESION==
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Hemolin, an insect immunoglobulin superfamily member, is a lipopolysaccharide-binding immune protein induced during bacterial infection. The 3.1 angstrom crystal structure reveals a bound phosphate and patches of positive charge, which may represent the lipopolysaccharide binding site, and a new and unexpected arrangement of four immunoglobulin-like domains forming a horseshoe. Sequence analysis and analytical ultracentrifugation suggest that the domain arrangement is a feature of the L1 family of neural cell adhesion molecules related to hemolin. These results are relevant to interpretation of human L1 mutations in neurological diseases and suggest a domain swapping model for how L1 family proteins mediate homophilic adhesion.
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<StructureSection load='1bih' size='340' side='right'caption='[[1bih]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
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== Structural highlights ==
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==About this Structure==
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<table><tr><td colspan='2'>[[1bih]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Hyalophora_cecropia Hyalophora cecropia]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BIH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BIH FirstGlance]. <br>
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1BIH is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Hyalophora_cecropia Hyalophora cecropia] with <scene name='pdbligand=PO4:'>PO4</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BIH OCA].
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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]] 3.1&#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=PO4:PHOSPHATE+ION'>PO4</scene></td></tr>
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==Reference==
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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=1bih FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bih OCA], [https://pdbe.org/1bih PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1bih RCSB], [https://www.ebi.ac.uk/pdbsum/1bih PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1bih ProSAT]</span></td></tr>
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Crystal structure of hemolin: a horseshoe shape with implications for homophilic adhesion., Su XD, Gastinel LN, Vaughn DE, Faye I, Poon P, Bjorkman PJ, Science. 1998 Aug 14;281(5379):991-5. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=9703515 9703515]
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/HEMO_HYACE HEMO_HYACE] Insect-immune protein. Forms a protein complex at the bacterial surface. Can inhibit hemocyte aggregation.
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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/bi/1bih_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/main_output.php?pdb_ID=1bih ConSurf].
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<div style="clear:both"></div>
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__TOC__
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</StructureSection>
[[Category: Hyalophora cecropia]]
[[Category: Hyalophora cecropia]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Bjorkman, P J.]]
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[[Category: Bjorkman PJ]]
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[[Category: Faye, I.]]
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[[Category: Faye I]]
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[[Category: Gastinel, L N.]]
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[[Category: Gastinel LN]]
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[[Category: Poon, P.]]
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[[Category: Poon P]]
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[[Category: Su, X D.]]
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[[Category: Su X-D]]
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[[Category: Vaughn, D E.]]
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[[Category: Vaughn DE]]
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[[Category: PO4]]
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[[Category: homophilic adhesion]]
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[[Category: insect immunity]]
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[[Category: lps-binding]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 11:55:39 2008''
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Current revision

CRYSTAL STRUCTURE OF THE INSECT IMMUNE PROTEIN HEMOLIN: A NEW DOMAIN ARRANGEMENT WITH IMPLICATIONS FOR HOMOPHILIC ADHESION

PDB ID 1bih

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