1ua6: Difference between revisions
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==Crystal structure of HYHEL-10 FV MUTANT SFSF complexed with HEN EGG WHITE LYSOZYME complex== | ==Crystal structure of HYHEL-10 FV MUTANT SFSF complexed with HEN EGG WHITE LYSOZYME complex== | ||
<StructureSection load='1ua6' size='340' side='right' caption='[[1ua6]], [[Resolution|resolution]] 1.90Å' scene=''> | <StructureSection load='1ua6' size='340' side='right' caption='[[1ua6]], [[Resolution|resolution]] 1.90Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1ua6]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/ | <table><tr><td colspan='2'>[[1ua6]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus] and [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UA6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1UA6 FirstGlance]. <br> | ||
</td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Lysozyme Lysozyme], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.17 3.2.1.17] </span></td></tr> | </td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Lysozyme Lysozyme], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.17 3.2.1.17] </span></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ua6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ua6 OCA], [http://pdbe.org/1ua6 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1ua6 RCSB], [http://www.ebi.ac.uk/pdbsum/1ua6 PDBsum]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ua6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ua6 OCA], [http://pdbe.org/1ua6 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1ua6 RCSB], [http://www.ebi.ac.uk/pdbsum/1ua6 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1ua6 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ua/1ua6_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ua/1ua6_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
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==See Also== | ==See Also== | ||
*[[Lysozyme 3D structures|Lysozyme 3D structures]] | *[[Lysozyme 3D structures|Lysozyme 3D structures]] | ||
*[[Monoclonal | *[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Gallus gallus]] | ||
[[Category: Lk3 transgenic mice]] | [[Category: Lk3 transgenic mice]] | ||
[[Category: Lysozyme]] | [[Category: Lysozyme]] | ||
Revision as of 11:49, 21 March 2018
Crystal structure of HYHEL-10 FV MUTANT SFSF complexed with HEN EGG WHITE LYSOZYME complexCrystal structure of HYHEL-10 FV MUTANT SFSF complexed with HEN EGG WHITE LYSOZYME complex
Structural highlights
Function[LYSC_CHICK] Lysozymes have primarily a bacteriolytic function; those in tissues and body fluids are associated with the monocyte-macrophage system and enhance the activity of immunoagents. Has bacteriolytic activity against M.luteus.[1] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedDecreased affinity of an antibody for a mutated epitope in an antigen can be enhanced and reversed by mutations in certain antibody residues. Here we describe the crystal structures of (a) the complex between a naturally mutated proteinaceous antigen and an antibody that was mutated and selected in vitro, and (b) the complex between the normal antigen and the mutated antibody. The mutated and selected antibody recognizes essentially the same epitope as in the wild-type antibody, indicating successful target site-directed functional alteration of the antibody. In comparing the structure of the mutated antigen-mutant antibody complex with the previously established structure of the wild-type antigen-wild-type antibody complex, we found that the enhanced affinity of the mutated antibody for the mutant antigen originated not from improvements in local complementarity around the mutated sites but from subtle and critical structural changes in nonmutated sites, including an increase in variable domain interactions. Our findings indicate that only a few mutations in the antigen-binding region of an antibody can lead to some structural changes in its paratopes, emphasizing the critical roles of the plasticity of loops in the complementarity-determining region and also the importance of the plasticity of the interaction between the variable regions of immunoglobulin heavy and light chains in determining the specificity of an antibody. Structural consequences of target epitope-directed functional alteration of an antibody. The case of anti-hen lysozyme antibody, HyHEL-10.,Kumagai I, Nishimiya Y, Kondo H, Tsumoto K J Biol Chem. 2003 Jul 4;278(27):24929-36. Epub 2003 Apr 22. PMID:12709438[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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