3f58

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{{Seed}}
 
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[[Image:3f58.png|left|200px]]
 
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==IGG1 FAB FRAGMENT (58.2) COMPLEX WITH 12-RESIDUE CYCLIC PEPTIDE (INCLUDING RESIDUES 315-324 OF HIV-1 GP120 (MN ISOLATE); H315S MUTATION==
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The line below this paragraph, containing "STRUCTURE_3f58", creates the "Structure Box" on the page.
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<StructureSection load='3f58' size='340' side='right'caption='[[3f58]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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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'>[[3f58]] is a 3 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=3F58 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3F58 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]] 2.8&#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=3f58 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3f58 OCA], [https://pdbe.org/3f58 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3f58 RCSB], [https://www.ebi.ac.uk/pdbsum/3f58 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3f58 ProSAT]</span></td></tr>
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{{STRUCTURE_3f58| PDB=3f58 | SCENE= }}
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</table>
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== Evolutionary Conservation ==
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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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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/f5/3f58_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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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=3f58 ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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BACKGROUND: The third hypervariable (V3) loop of HIV-1 gp120 has been termed the principal neutralizing determinant (PND) of the virus and is involved in many aspects of virus infectivity. The V3 loop is required for viral entry into the cell via membrane fusion and is believed to interact with cell surface chemokine receptors on T cells and macrophages. Sequence changes in V3 can affect chemokine receptor usage, and can, therefore, modulate which types of cells are infected. Antibodies raised against peptides with V3 sequences can neutralize laboratory-adapted strains of the virus and inhibit syncytia formation. Fab fragments of these neutralizing antibodies in complex with V3 loop peptides have been studied by X-ray crystallography to determine the conformation of the V3 loop. RESULTS: We have determined three crystal structures of Fab 58.2, a broadly neutralizing antibody, in complex with one linear and two cyclic peptides the amino acid sequence of which comes from the MN isolate of the gp120 V3 loop. Although the peptide conformations are very similar for the linear and cyclic forms, they differ from that seen for the identical peptide bound to a different broadly neutralizing antibody, Fab 59.1, and for a similar peptide bound to the MN-specific Fab 50.1. The conformational difference in the peptide is localized around residues Gly-Pro-Gly-Arg, which are highly conserved in different HIV-1 isolates and are predicted to adopt a type II beta turn. CONCLUSIONS: The V3 loop can adopt at least two different conformations for the highly conserved Gly-Pro-Gly-Arg sequence at the tip of the loop. Thus, the HIV-1 V3 loop has some inherent conformational flexibility that may relate to its biological function.
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===IGG1 FAB FRAGMENT (58.2) COMPLEX WITH 12-RESIDUE CYCLIC PEPTIDE (INCLUDING RESIDUES 315-324 OF HIV-1 GP120 (MN ISOLATE); H315S MUTATION===
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Dual conformations for the HIV-1 gp120 V3 loop in complexes with different neutralizing fabs.,Stanfield R, Cabezas E, Satterthwait A, Stura E, Profy A, Wilson I Structure. 1999 Feb 15;7(2):131-42. PMID:10368281<ref>PMID:10368281</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 3f58" style="background-color:#fffaf0;"></div>
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==See Also==
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*[[Antibody 3D structures|Antibody 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 10368281 is the PubMed ID number.
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*[[3D structures of non-human antibody|3D structures of non-human antibody]]
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== References ==
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{{ABSTRACT_PUBMED_10368281}}
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<references/>
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__TOC__
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==About this Structure==
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</StructureSection>
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3F58 is a 3 chains structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3F58 OCA].
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[[Category: Large Structures]]
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==Reference==
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<ref group="xtra">PMID:10368281</ref><references group="xtra"/>
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[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Cabezas, E.]]
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[[Category: Cabezas E]]
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[[Category: Profy, A T.]]
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[[Category: Profy AT]]
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[[Category: Satterthwait, A C.]]
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[[Category: Satterthwait AC]]
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[[Category: Stanfield, R L.]]
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[[Category: Stanfield RL]]
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[[Category: Stura, E A.]]
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[[Category: Stura EA]]
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[[Category: Wilson, I A.]]
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[[Category: Wilson IA]]
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[[Category: Fab]]
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[[Category: Gp120]]
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[[Category: Hiv-1]]
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[[Category: Immunoglobulin]]
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[[Category: V3]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Feb 17 11:00:49 2009''
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Current revision

IGG1 FAB FRAGMENT (58.2) COMPLEX WITH 12-RESIDUE CYCLIC PEPTIDE (INCLUDING RESIDUES 315-324 OF HIV-1 GP120 (MN ISOLATE); H315S MUTATION

PDB ID 3f58

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