3r8b

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<StructureSection load='3r8b' size='340' side='right'caption='[[3r8b]], [[Resolution|resolution]] 2.95&Aring;' scene=''>
<StructureSection load='3r8b' size='340' side='right'caption='[[3r8b]], [[Resolution|resolution]] 2.95&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[3r8b]] is a 16 chain structure with sequence from [https://en.wikipedia.org/wiki/"micrococcus_aureus"_(rosenbach_1884)_zopf_1885 "micrococcus aureus" (rosenbach 1884) zopf 1885] and [https://en.wikipedia.org/wiki/Buffalo_rat Buffalo rat]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3R8B OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3R8B FirstGlance]. <br>
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<table><tr><td colspan='2'>[[3r8b]] is a 16 chain structure with sequence from [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus] and [https://en.wikipedia.org/wiki/Staphylococcus_aureus Staphylococcus aureus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3R8B OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3R8B FirstGlance]. <br>
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</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=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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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]] 2.95&#8491;</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">entB ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1280 "Micrococcus aureus" (Rosenbach 1884) Zopf 1885])</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=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=3r8b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3r8b OCA], [https://pdbe.org/3r8b PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3r8b RCSB], [https://www.ebi.ac.uk/pdbsum/3r8b PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3r8b ProSAT]</span></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=3r8b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3r8b OCA], [https://pdbe.org/3r8b PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3r8b RCSB], [https://www.ebi.ac.uk/pdbsum/3r8b PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3r8b ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[https://www.uniprot.org/uniprot/ETXB_STAAU ETXB_STAAU]] Staphylococcal enterotoxins cause the intoxication staphylococcal food poisoning syndrome. The illness characterized by high fever, hypotension, diarrhea, shock, and in some cases death.
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[https://www.uniprot.org/uniprot/ETXB_STAAU ETXB_STAAU] Staphylococcal enterotoxins cause the intoxication staphylococcal food poisoning syndrome. The illness characterized by high fever, hypotension, diarrhea, shock, and in some cases death.
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Protein engineering is becoming increasingly important for pharmaceutical applications where controlling the specificity and affinity of engineered proteins is required to create targeted protein therapeutics. Affinity increases of several thousand-fold are now routine for a variety of protein engineering approaches, and the structural and energetic bases of affinity maturation have been investigated in a number of such cases. Previously, a 3-million-fold affinity maturation process was achieved in a protein-protein interaction composed of a variant T-cell receptor fragment and a bacterial superantigen. Here, we present the molecular basis of this affinity increase. Using X-ray crystallography, shotgun reversion/replacement scanning mutagenesis, and computational analysis, we describe, in molecular detail, a process by which extrainterfacial regions of a protein complex can be rationally manipulated to significantly improve protein engineering outcomes.
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Molecular Basis of a Million-Fold Affinity Maturation Process in a Protein-Protein Interaction.,Bonsor DA, Postel S, Pierce BG, Wang N, Zhu P, Buonpane RA, Weng Z, Kranz DM, Sundberg EJ J Mol Biol. 2011 Jun 12. PMID:21689661<ref>PMID:21689661</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 3r8b" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Buffalo rat]]
 
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Bonsor, D A]]
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[[Category: Rattus norvegicus]]
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[[Category: Sundberg, E J]]
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[[Category: Staphylococcus aureus]]
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[[Category: Immunoglobulin-like]]
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[[Category: Bonsor DA]]
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[[Category: Ob-fold]]
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[[Category: Sundberg EJ]]
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[[Category: Toxin-immune system complex]]
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Revision as of 12:13, 14 March 2024

Crystal structure of Staphylococcal Enterotoxin B in complex with an affinity matured mouse TCR VBeta8.2 protein, G5-8

PDB ID 3r8b

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