1g6u

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[[Image:1g6u.jpg|left|200px]]
 
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==CRYSTAL STRUCTURE OF A DOMAIN SWAPPED DIMER==
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The line below this paragraph, containing "STRUCTURE_1g6u", creates the "Structure Box" on the page.
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<StructureSection load='1g6u' size='340' side='right'caption='[[1g6u]], [[Resolution|resolution]] 1.48&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'>[[1g6u]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1G6U OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1G6U 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]] 1.48&#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>, <scene name='pdbligand=TFA:TRIFLUOROACETIC+ACID'>TFA</scene></td></tr>
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{{STRUCTURE_1g6u| PDB=1g6u | 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=1g6u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1g6u OCA], [https://pdbe.org/1g6u PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1g6u RCSB], [https://www.ebi.ac.uk/pdbsum/1g6u PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1g6u ProSAT]</span></td></tr>
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</table>
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'''CRYSTAL STRUCTURE OF A DOMAIN SWAPPED DIMER'''
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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: Bryson JW]]
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Three-dimensional (3D) domain-swapped proteins are intermolecularly folded analogs of monomeric proteins; both are stabilized by the identical interactions, but the individual domains interact intramolecularly in monomeric proteins, whereas they form intermolecular interactions in 3D domain-swapped structures. The structures and conditions of formation of several domain-swapped dimers and trimers are known, but the formation of higher order 3D domain-swapped oligomers has been less thoroughly studied. Here we contrast the structural consequences of domain swapping from two designed three-helix bundles: one with an up-down-up topology, and the other with an up-down-down topology. The up-down-up topology gives rise to a domain-swapped dimer whose structure has been determined to 1.5 A resolution by x-ray crystallography. In contrast, the domain-swapped protein with an up-down-down topology forms fibrils as shown by electron microscopy and dynamic light scattering. This demonstrates that design principles can predict the oligomeric state of 3D domain-swapped molecules, which should aid in the design of domain-swapped proteins and biomaterials.
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[[Category: DeGrado WF]]
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[[Category: Eisenberg D]]
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==About this Structure==
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[[Category: Ghirlanda G]]
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Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1G6U OCA].
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[[Category: Gingery M]]
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[[Category: Ogihara NL]]
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==Reference==
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Design of three-dimensional domain-swapped dimers and fibrous oligomers., Ogihara NL, Ghirlanda G, Bryson JW, Gingery M, DeGrado WF, Eisenberg D, Proc Natl Acad Sci U S A. 2001 Feb 13;98(4):1404-9. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11171963 11171963]
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[[Category: Bryson, J W.]]
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[[Category: DeGrado, W F.]]
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[[Category: Eisenberg, D.]]
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[[Category: Ghirlanda, G.]]
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[[Category: Gingery, M.]]
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[[Category: Ogihara, N L.]]
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[[Category: Designed three helix bundle]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 17:12:51 2008''
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Current revision

CRYSTAL STRUCTURE OF A DOMAIN SWAPPED DIMER

PDB ID 1g6u

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