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1fgv

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[[Image:1fgv.gif|left|200px]]
 
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==X-RAY STRUCTURES OF FRAGMENTS FROM BINDING AND NONBINDING VERSIONS OF A HUMANIZED ANTI-CD18 ANTIBODY: STRUCTURAL INDICATIONS OF THE KEY ROLE OF VH RESIDUES 59 TO 65==
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The line below this paragraph, containing "STRUCTURE_1fgv", creates the "Structure Box" on the page.
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<StructureSection load='1fgv' size='340' side='right'caption='[[1fgv]], [[Resolution|resolution]] 1.90&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'>[[1fgv]] 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=1FGV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FGV FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 1.9&#8491;</td></tr>
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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=1fgv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fgv OCA], [https://pdbe.org/1fgv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1fgv RCSB], [https://www.ebi.ac.uk/pdbsum/1fgv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1fgv ProSAT]</span></td></tr>
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{{STRUCTURE_1fgv| PDB=1fgv | SCENE= }}
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</table>
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== Evolutionary Conservation ==
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'''X-RAY STRUCTURES OF FRAGMENTS FROM BINDING AND NONBINDING VERSIONS OF A HUMANIZED ANTI-CD18 ANTIBODY: STRUCTURAL INDICATIONS OF THE KEY ROLE OF VH RESIDUES 59 TO 65'''
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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==Overview==
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fg/1fgv_consurf.spt"</scriptWhenChecked>
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X-ray crystal structures of fragments from two different humanized anti-CD18 antibodies are reported. The Fv fragment of the nonbinding version has been refined in space group C2 with a = 64.2 A, b = 61.3 A, c = 51.8 A, and beta = 99 degrees to an R-value of 18.0% at 1.9 A, and the Fab fragment of the tight-binding version has been refined in space group P3 with a = 101. A and c = 45.5 A to an R-value of 17.8% at 3.0 A resolution. The very large difference in their binding affinity (&gt; 1000-fold) is attributed to large and local structural differences in the C-terminal part of CDR-H2, and from this we conclude there is direct contact between this region and antigen when they combine. X-ray structures of antibody-antigen complexes available in the literature have yet to show this part of CDR-H2 in contact with antigen, despite its hypervariable sequence. Implications of this result for antibody humanization are discussed.
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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==About this Structure==
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</jmolCheckbox>
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1FGV is a [[Single protein]] structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FGV OCA].
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1fgv ConSurf].
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<div style="clear:both"></div>
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==Reference==
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__TOC__
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X-ray structures of fragments from binding and nonbinding versions of a humanized anti-CD18 antibody: structural indications of the key role of VH residues 59 to 65., Eigenbrot C, Gonzalez T, Mayeda J, Carter P, Werther W, Hotaling T, Fox J, Kessler J, Proteins. 1994 Jan;18(1):49-62. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/7908437 7908437]
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</StructureSection>
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[[Category: Single protein]]
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[[Category: Homo sapiens]]
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[[Category: Eigenbrot, C.]]
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[[Category: Large Structures]]
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[[Category: Kessler, J.]]
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[[Category: Eigenbrot C]]
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[[Category: Immunoglobulin]]
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[[Category: Kessler J]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 16:18:41 2008''
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Current revision

X-RAY STRUCTURES OF FRAGMENTS FROM BINDING AND NONBINDING VERSIONS OF A HUMANIZED ANTI-CD18 ANTIBODY: STRUCTURAL INDICATIONS OF THE KEY ROLE OF VH RESIDUES 59 TO 65

PDB ID 1fgv

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