5vga

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== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[5vga]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VGA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5VGA FirstGlance]. <br>
<table><tr><td colspan='2'>[[5vga]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VGA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5VGA 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=PGE:TRIETHYLENE+GLYCOL'>PGE</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]] 2.5&#8491;</td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2a6i|2a6i]]</div></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=PGE:TRIETHYLENE+GLYCOL'>PGE</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=5vga FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vga OCA], [https://pdbe.org/5vga PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5vga RCSB], [https://www.ebi.ac.uk/pdbsum/5vga PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5vga 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=5vga FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vga OCA], [https://pdbe.org/5vga PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5vga RCSB], [https://www.ebi.ac.uk/pdbsum/5vga PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5vga ProSAT]</span></td></tr>
</table>
</table>
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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Correlation between the promiscuity of the primary antibody response and conformational flexibility in a germline antibody was addressed by using germline antibody 36-65. Crystallographic analyses of the 36-65 Fab with three independent dodecapeptides provided mechanistic insights into the generation of antibody diversity. While four antigen-free Fab molecules provided a quantitative description of the conformational repertoire of the antibody CDRs, three Fab molecules bound to structurally diverse peptide epitopes exhibited a common paratope conformation. Each peptide revealed spatially different footprints within the antigen-combining site. However, a conformation-specific lock involving two shared residues, which were also associated with hapten binding, was discernible. Unlike the hapten, the peptides interacted with residues that undergo somatic mutations, suggesting a possible mechanism for excluding "nonspecific" antigens during affinity maturation. The observed multiple binding modes of diverse epitopes within a common paratope conformation of a germline antibody reveal a simple, yet elegant, mechanism for expanding the primary antibody repertoire.
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The massive technical and computational progress of biomolecular crystallography has generated some adverse side effects. Most crystal structure models, produced by crystallographers or well-trained structural biologists, constitute useful sources of information, but occasional extreme outliers remind us that the process of structure determination is not fail-safe. The occurrence of severe errors or gross misinterpretations raises fundamental questions: Why do such aberrations emerge in the first place? How did they evade the sophisticated validation procedures which often produce clear and dire warnings, and why were severe errors not noticed by the depositors themselves, their supervisors, referees, and editors? Once detected, what can be done to either correct, improve, or eliminate such models? How do incorrect models affect the underlying claims or biomedical hypotheses they were intended, but failed, to support? What is the long-range effect of the propagation of such errors? And finally, what mechanisms can be envisioned to restore the validity of the scientific record and, if necessary, retract publications that are clearly invalidated by the lack of experimental evidence? We suggest that cognitive bias and flawed epistemology are likely at the root of the problem. By using examples from the published literature and from public repositories such as the Protein Data Bank, we provide case summaries to guide correction or improvement of structural models. When strong claims are unsustainable because of a deficient crystallographic model, removal of such a model and even retraction of the affected publication are necessary to restore the integrity of the scientific record. This article is protected by copyright. All rights reserved.
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Differential epitope positioning within the germline antibody paratope enhances promiscuity in the primary immune response.,Sethi DK, Agarwal A, Manivel V, Rao KV, Salunke DM Immunity. 2006 Apr;24(4):429-38. PMID:16618601<ref>PMID:16618601</ref>
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Detect, Correct, Retract: How to manage incorrect structural models.,Wlodawer A, Dauter Z, Porebski PJ, Minor W, Stanfield R, Jaskolski M, Pozharski E, Weichenberger CX, Rupp B FEBS J. 2017 Nov 7. doi: 10.1111/febs.14320. PMID:29113027<ref>PMID:29113027</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Dauter, Z]]
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[[Category: Dauter Z]]
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[[Category: Jaskolski, M]]
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[[Category: Jaskolski M]]
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[[Category: Minor, W]]
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[[Category: Minor W]]
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[[Category: Porebski, P J]]
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[[Category: Porebski PJ]]
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[[Category: Pozharski, E]]
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[[Category: Pozharski E]]
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[[Category: Rupp, B]]
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[[Category: Rupp B]]
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[[Category: Stanfield, R L]]
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[[Category: Stanfield RL]]
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[[Category: Weichenberger, C X]]
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[[Category: Weichenberger CX]]
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[[Category: Wlodawer, A]]
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[[Category: Wlodawer A]]
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[[Category: Germline antibody anti-arsonate]]
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[[Category: Immune system]]
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Current revision

Alternative model for Fab 36-65

PDB ID 5vga

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