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1hr3

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[[Image:1hr3.jpg|left|200px]]
 
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==STRUCTURE OF TRIMERIC HAEMERYTHRIN==
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The line below this paragraph, containing "STRUCTURE_1hr3", creates the "Structure Box" on the page.
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<StructureSection load='1hr3' size='340' side='right'caption='[[1hr3]], [[Resolution|resolution]] 5.50&Aring;' scene=''>
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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'>[[1hr3]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Siphonosoma Siphonosoma]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HR3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1HR3 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]] 5.5&#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=FEA:MONOAZIDO-MU-OXO-DIIRON'>FEA</scene></td></tr>
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{{STRUCTURE_1hr3| PDB=1hr3 | 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=1hr3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hr3 OCA], [https://pdbe.org/1hr3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1hr3 RCSB], [https://www.ebi.ac.uk/pdbsum/1hr3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1hr3 ProSAT]</span></td></tr>
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</table>
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'''STRUCTURE OF TRIMERIC HAEMERYTHRIN'''
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
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==Overview==
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[[Category: Siphonosoma]]
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Several simplifying structural principles have been developed from the considerable data contained in the three-dimensional structures of proteins determined in the past two decades. One of these is based on the observation that particular folding motifs often occur in a variety of structural and functional settings. The compact bundle of four antiparallel alpha-helices, first seen in the structure of myohaemerythrin, is an example. Several non-haemerythrin proteins have since been found to have the same folding pattern, and haemerythrins themselves exist in a wide variety of quaternary arrangements. The unusual ability of the haemerythrin fold to associate as dimers, trimers, tetramers, octamers or higher aggregates provides an opportunity for examining structural diversity in subunit association. We have used X-ray crystallography to study the subunit structure of trimeric haemerythrin from a Siphonosoma species. We report here that the pattern of intersubunit helix-helix interactions differs from the most common mode of association of other helix-bundle proteins. In a novel approach to structure analysis at low resolution, experimental phases for the structure determination were based on anomalous scattering from the iron atoms native to haemerythrin, using the new resolved-anomalous phasing procedure.
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[[Category: Addison AW]]
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[[Category: Hendrickson WA]]
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==About this Structure==
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[[Category: Smith JL]]
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Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HR3 OCA].
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==Reference==
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Structure of trimeric haemerythrin., Smith JL, Hendrickson WA, Addison AW, Nature. 1983 May 5-11;303(5912):86-8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/6843663 6843663]
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[[Category: Addison, A W.]]
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[[Category: Hendrickson, W A.]]
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[[Category: Smith, J L.]]
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[[Category: Oxygen transport protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 19:09:04 2008''
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Current revision

STRUCTURE OF TRIMERIC HAEMERYTHRIN

PDB ID 1hr3

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