5grv: Difference between revisions
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==Crystal structure of homo-specific diabody== | ==Crystal structure of homo-specific diabody== | ||
<StructureSection load='5grv' size='340' side='right' caption='[[5grv]], [[Resolution|resolution]] 2.30Å' scene=''> | <StructureSection load='5grv' size='340' side='right'caption='[[5grv]], [[Resolution|resolution]] 2.30Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[5grv]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5GRV OCA]. For a <b>guided tour on the structure components</b> use [ | <table><tr><td colspan='2'>[[5grv]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5GRV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5GRV FirstGlance]. <br> | ||
</td></tr><tr id=' | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3Å</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5grv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5grv OCA], [https://pdbe.org/5grv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5grv RCSB], [https://www.ebi.ac.uk/pdbsum/5grv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5grv ProSAT]</span></td></tr> | ||
</table> | </table> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
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</div> | </div> | ||
<div class="pdbe-citations 5grv" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 5grv" style="background-color:#fffaf0;"></div> | ||
==See Also== | |||
*[[Antibody 3D structures|Antibody 3D structures]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Homo sapiens]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: | [[Category: Cho G]] | ||
[[Category: | [[Category: Kim JH]] | ||
[[Category: | [[Category: Kim JW]] | ||
[[Category: | [[Category: Lee H]] | ||
[[Category: | [[Category: Lee JO]] | ||
[[Category: | [[Category: Song DH]] | ||
[[Category: | [[Category: Youn SJ]] | ||
Latest revision as of 14:40, 2 August 2023
Crystal structure of homo-specific diabodyCrystal structure of homo-specific diabody
Structural highlights
Publication Abstract from PubMedBuilding a sophisticated protein nano-assembly requires a method for linking protein components in a predictable and stable structure. Diabodies are engineered antibody fragments that are composed of two Fv domains connected by short peptide linkers. They are attractive candidates for mediators in assembling protein nano-structures because they can simultaneously bind to two different proteins and are rigid enough to be crystallized. However, comparison of previous crystal structures demonstrates that there is substantial structural diversity in the Fv interface region of diabodies and, therefore, reliable prediction of its structure is not trivial. Here, we present the crystal structures of ten mono- and bi-specific diabodies. We found that changing an arginine residue in the Fv interface to threonine greatly reduced the structural diversity of diabodies. We also found that one of the bispecific diabodies underwent an unexpected process of chain swapping yielding a non-functional monospecific diabody. In order to further reduce structural flexibility and prevent chain shuffling, we introduced disulfide bridges in the Fv interface regions. The disulfide-bridged diabodies have rigid and predictable structures and may have applications in crystallizing proteins, analyzing cryo-electron microscopic images and building protein nano-assemblies. Crystal structures of mono- and bi-specific diabodies and reduction of their structural flexibility by introduction of disulfide bridges at the Fv interface.,Kim JH, Song DH, Youn SJ, Kim JW, Cho G, Kim SC, Lee H, Jin MS, Lee JO Sci Rep. 2016 Sep 29;6:34515. doi: 10.1038/srep34515. PMID:27682821[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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